├── README.MD ├── java-week-api ├── .gitignore ├── .mvn │ └── wrapper │ │ ├── maven-wrapper.jar │ │ └── maven-wrapper.properties ├── README.md ├── mvnw ├── mvnw.cmd ├── pom.xml └── src │ ├── main │ ├── java │ │ └── com │ │ │ └── linuxtips │ │ │ └── javaweekapi │ │ │ ├── JavaWeekApiApplication.java │ │ │ ├── controller │ │ │ └── CursoController.java │ │ │ ├── model │ │ │ └── Curso.java │ │ │ ├── repository │ │ │ └── CursoRepository.java │ │ │ └── service │ │ │ └── CursoService.java │ └── resources │ │ └── application.properties │ └── test │ └── java │ └── com │ └── linuxtips │ └── javaweekapi │ └── JavaWeekApiApplicationTests.java └── orientacao-a-objetos ├── .gitignore ├── abstracao ├── .gitignore ├── Conta.java ├── ContaCorrente.java ├── ContaPoupanca.java └── LinuxTipsBankMain.java ├── encapsulamento ├── Profissional.java └── ProfissionalMain.java ├── heranca ├── Pessoa.java ├── PessoaDesenvolvedora.java ├── PessoaDesenvolvedoraBackend.java └── PessoaDesenvolvedoraFrontEnd.java └── polimorfismo ├── Pagamento.java └── sobrescrita ├── Botao.java ├── BotaoFogao.java ├── BotaoTV.java └── Main.java /README.MD: -------------------------------------------------------------------------------- 1 | ## 🔖 Sobre 2 | 3 | Repositório com todos os conteúdos ministrados na Java Week da LinuxTips. 4 | 5 | ## 💻 Conteúdo programático 6 | 7 | 8 | 📢 27/03: Bate-papo sobre carreira, mercado de trabalho e possibilidades de usar a stack Java e Spring 9 | 10 | 📢 28/03: Aprenda os conceitos da programação orientada a objetos na prática 11 | 12 | 📢 29/03: Criando sua primeira API com Spring do zero - parte 1 13 | 14 | 📢 30/03: Criando sua primeira API com Spring do zero - parte 2 15 | 16 | 📢 31/03: Microsserviços: conceitos, boas práticas e padrões 17 | 18 | ⚙ Onde assistir: 19 | 20 | [LinuxTips](https://www.twitch.tv/linuxtips) 21 | 22 | -------------------------------------------------------------------------------- /java-week-api/.gitignore: -------------------------------------------------------------------------------- 1 | HELP.md 2 | target/ 3 | !.mvn/wrapper/maven-wrapper.jar 4 | !**/src/main/**/target/ 5 | !**/src/test/**/target/ 6 | 7 | ### STS ### 8 | .apt_generated 9 | .classpath 10 | .factorypath 11 | .project 12 | .settings 13 | .springBeans 14 | .sts4-cache 15 | 16 | ### IntelliJ IDEA ### 17 | .idea 18 | *.iws 19 | *.iml 20 | *.ipr 21 | 22 | ### NetBeans ### 23 | /nbproject/private/ 24 | /nbbuild/ 25 | /dist/ 26 | /nbdist/ 27 | /.nb-gradle/ 28 | build/ 29 | !**/src/main/**/build/ 30 | !**/src/test/**/build/ 31 | 32 | ### VS Code ### 33 | .vscode/ 34 | -------------------------------------------------------------------------------- /java-week-api/.mvn/wrapper/maven-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Kamilahsantos/Java-week-LinuxTips/665c443fd3e4247d7ab152818825711f88dfc979/java-week-api/.mvn/wrapper/maven-wrapper.jar -------------------------------------------------------------------------------- /java-week-api/.mvn/wrapper/maven-wrapper.properties: -------------------------------------------------------------------------------- 1 | # Licensed to the Apache Software Foundation (ASF) under one 2 | # or more contributor license agreements. See the NOTICE file 3 | # distributed with this work for additional information 4 | # regarding copyright ownership. The ASF licenses this file 5 | # to you under the Apache License, Version 2.0 (the 6 | # "License"); you may not use this file except in compliance 7 | # with the License. You may obtain a copy of the License at 8 | # 9 | # https://www.apache.org/licenses/LICENSE-2.0 10 | # 11 | # Unless required by applicable law or agreed to in writing, 12 | # software distributed under the License is distributed on an 13 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 14 | # KIND, either express or implied. See the License for the 15 | # specific language governing permissions and limitations 16 | # under the License. 17 | distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.7/apache-maven-3.8.7-bin.zip 18 | wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar 19 | -------------------------------------------------------------------------------- /java-week-api/README.md: -------------------------------------------------------------------------------- 1 | ## Como rodar o projeto 2 | 3 | 1 - Configure o java 19 no GitPod 4 | 5 | sdk install java 19.0.2-open 6 | 7 | 2 - Rode o comando mvn clean e mvn install 8 | 9 | 3 - Rode o comando mvn spring-boot:run 10 | 11 | 12 | 13 | ### Links uteis: 14 | https://developer.mozilla.org/pt-BR/docs/Glossary/REST 15 | https://developer.mozilla.org/pt-BR/docs/Glossary/API 16 | https://developer.mozilla.org/pt-BR/docs/Glossary/CRUD 17 | https://developer.mozilla.org/pt-BR/docs/Web/HTTP/Status 18 | https://http.cat/ 19 | https://http.dog/ 20 | -------------------------------------------------------------------------------- /java-week-api/mvnw: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # ---------------------------------------------------------------------------- 3 | # Licensed to the Apache Software Foundation (ASF) under one 4 | # or more contributor license agreements. See the NOTICE file 5 | # distributed with this work for additional information 6 | # regarding copyright ownership. The ASF licenses this file 7 | # to you under the Apache License, Version 2.0 (the 8 | # "License"); you may not use this file except in compliance 9 | # with the License. You may obtain a copy of the License at 10 | # 11 | # https://www.apache.org/licenses/LICENSE-2.0 12 | # 13 | # Unless required by applicable law or agreed to in writing, 14 | # software distributed under the License is distributed on an 15 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 | # KIND, either express or implied. See the License for the 17 | # specific language governing permissions and limitations 18 | # under the License. 19 | # ---------------------------------------------------------------------------- 20 | 21 | # ---------------------------------------------------------------------------- 22 | # Maven Start Up Batch script 23 | # 24 | # Required ENV vars: 25 | # ------------------ 26 | # JAVA_HOME - location of a JDK home dir 27 | # 28 | # Optional ENV vars 29 | # ----------------- 30 | # M2_HOME - location of maven2's installed home dir 31 | # MAVEN_OPTS - parameters passed to the Java VM when running Maven 32 | # e.g. to debug Maven itself, use 33 | # set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 34 | # MAVEN_SKIP_RC - flag to disable loading of mavenrc files 35 | # ---------------------------------------------------------------------------- 36 | 37 | if [ -z "$MAVEN_SKIP_RC" ] ; then 38 | 39 | if [ -f /usr/local/etc/mavenrc ] ; then 40 | . /usr/local/etc/mavenrc 41 | fi 42 | 43 | if [ -f /etc/mavenrc ] ; then 44 | . /etc/mavenrc 45 | fi 46 | 47 | if [ -f "$HOME/.mavenrc" ] ; then 48 | . "$HOME/.mavenrc" 49 | fi 50 | 51 | fi 52 | 53 | # OS specific support. $var _must_ be set to either true or false. 54 | cygwin=false; 55 | darwin=false; 56 | mingw=false 57 | case "`uname`" in 58 | CYGWIN*) cygwin=true ;; 59 | MINGW*) mingw=true;; 60 | Darwin*) darwin=true 61 | # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home 62 | # See https://developer.apple.com/library/mac/qa/qa1170/_index.html 63 | if [ -z "$JAVA_HOME" ]; then 64 | if [ -x "/usr/libexec/java_home" ]; then 65 | export JAVA_HOME="`/usr/libexec/java_home`" 66 | else 67 | export JAVA_HOME="/Library/Java/Home" 68 | fi 69 | fi 70 | ;; 71 | esac 72 | 73 | if [ -z "$JAVA_HOME" ] ; then 74 | if [ -r /etc/gentoo-release ] ; then 75 | JAVA_HOME=`java-config --jre-home` 76 | fi 77 | fi 78 | 79 | if [ -z "$M2_HOME" ] ; then 80 | ## resolve links - $0 may be a link to maven's home 81 | PRG="$0" 82 | 83 | # need this for relative symlinks 84 | while [ -h "$PRG" ] ; do 85 | ls=`ls -ld "$PRG"` 86 | link=`expr "$ls" : '.*-> \(.*\)$'` 87 | if expr "$link" : '/.*' > /dev/null; then 88 | PRG="$link" 89 | else 90 | PRG="`dirname "$PRG"`/$link" 91 | fi 92 | done 93 | 94 | saveddir=`pwd` 95 | 96 | M2_HOME=`dirname "$PRG"`/.. 97 | 98 | # make it fully qualified 99 | M2_HOME=`cd "$M2_HOME" && pwd` 100 | 101 | cd "$saveddir" 102 | # echo Using m2 at $M2_HOME 103 | fi 104 | 105 | # For Cygwin, ensure paths are in UNIX format before anything is touched 106 | if $cygwin ; then 107 | [ -n "$M2_HOME" ] && 108 | M2_HOME=`cygpath --unix "$M2_HOME"` 109 | [ -n "$JAVA_HOME" ] && 110 | JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 111 | [ -n "$CLASSPATH" ] && 112 | CLASSPATH=`cygpath --path --unix "$CLASSPATH"` 113 | fi 114 | 115 | # For Mingw, ensure paths are in UNIX format before anything is touched 116 | if $mingw ; then 117 | [ -n "$M2_HOME" ] && 118 | M2_HOME="`(cd "$M2_HOME"; pwd)`" 119 | [ -n "$JAVA_HOME" ] && 120 | JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" 121 | fi 122 | 123 | if [ -z "$JAVA_HOME" ]; then 124 | javaExecutable="`which javac`" 125 | if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then 126 | # readlink(1) is not available as standard on Solaris 10. 127 | readLink=`which readlink` 128 | if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then 129 | if $darwin ; then 130 | javaHome="`dirname \"$javaExecutable\"`" 131 | javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" 132 | else 133 | javaExecutable="`readlink -f \"$javaExecutable\"`" 134 | fi 135 | javaHome="`dirname \"$javaExecutable\"`" 136 | javaHome=`expr "$javaHome" : '\(.*\)/bin'` 137 | JAVA_HOME="$javaHome" 138 | export JAVA_HOME 139 | fi 140 | fi 141 | fi 142 | 143 | if [ -z "$JAVACMD" ] ; then 144 | if [ -n "$JAVA_HOME" ] ; then 145 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 146 | # IBM's JDK on AIX uses strange locations for the executables 147 | JAVACMD="$JAVA_HOME/jre/sh/java" 148 | else 149 | JAVACMD="$JAVA_HOME/bin/java" 150 | fi 151 | else 152 | JAVACMD="`\\unset -f command; \\command -v java`" 153 | fi 154 | fi 155 | 156 | if [ ! -x "$JAVACMD" ] ; then 157 | echo "Error: JAVA_HOME is not defined correctly." >&2 158 | echo " We cannot execute $JAVACMD" >&2 159 | exit 1 160 | fi 161 | 162 | if [ -z "$JAVA_HOME" ] ; then 163 | echo "Warning: JAVA_HOME environment variable is not set." 164 | fi 165 | 166 | CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher 167 | 168 | # traverses directory structure from process work directory to filesystem root 169 | # first directory with .mvn subdirectory is considered project base directory 170 | find_maven_basedir() { 171 | 172 | if [ -z "$1" ] 173 | then 174 | echo "Path not specified to find_maven_basedir" 175 | return 1 176 | fi 177 | 178 | basedir="$1" 179 | wdir="$1" 180 | while [ "$wdir" != '/' ] ; do 181 | if [ -d "$wdir"/.mvn ] ; then 182 | basedir=$wdir 183 | break 184 | fi 185 | # workaround for JBEAP-8937 (on Solaris 10/Sparc) 186 | if [ -d "${wdir}" ]; then 187 | wdir=`cd "$wdir/.."; pwd` 188 | fi 189 | # end of workaround 190 | done 191 | echo "${basedir}" 192 | } 193 | 194 | # concatenates all lines of a file 195 | concat_lines() { 196 | if [ -f "$1" ]; then 197 | echo "$(tr -s '\n' ' ' < "$1")" 198 | fi 199 | } 200 | 201 | BASE_DIR=`find_maven_basedir "$(pwd)"` 202 | if [ -z "$BASE_DIR" ]; then 203 | exit 1; 204 | fi 205 | 206 | ########################################################################################## 207 | # Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 208 | # This allows using the maven wrapper in projects that prohibit checking in binary data. 209 | ########################################################################################## 210 | if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then 211 | if [ "$MVNW_VERBOSE" = true ]; then 212 | echo "Found .mvn/wrapper/maven-wrapper.jar" 213 | fi 214 | else 215 | if [ "$MVNW_VERBOSE" = true ]; then 216 | echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." 217 | fi 218 | if [ -n "$MVNW_REPOURL" ]; then 219 | jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 220 | else 221 | jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 222 | fi 223 | while IFS="=" read key value; do 224 | case "$key" in (wrapperUrl) jarUrl="$value"; break ;; 225 | esac 226 | done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" 227 | if [ "$MVNW_VERBOSE" = true ]; then 228 | echo "Downloading from: $jarUrl" 229 | fi 230 | wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" 231 | if $cygwin; then 232 | wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` 233 | fi 234 | 235 | if command -v wget > /dev/null; then 236 | if [ "$MVNW_VERBOSE" = true ]; then 237 | echo "Found wget ... using wget" 238 | fi 239 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 240 | wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" 241 | else 242 | wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" 243 | fi 244 | elif command -v curl > /dev/null; then 245 | if [ "$MVNW_VERBOSE" = true ]; then 246 | echo "Found curl ... using curl" 247 | fi 248 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 249 | curl -o "$wrapperJarPath" "$jarUrl" -f 250 | else 251 | curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f 252 | fi 253 | 254 | else 255 | if [ "$MVNW_VERBOSE" = true ]; then 256 | echo "Falling back to using Java to download" 257 | fi 258 | javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" 259 | # For Cygwin, switch paths to Windows format before running javac 260 | if $cygwin; then 261 | javaClass=`cygpath --path --windows "$javaClass"` 262 | fi 263 | if [ -e "$javaClass" ]; then 264 | if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 265 | if [ "$MVNW_VERBOSE" = true ]; then 266 | echo " - Compiling MavenWrapperDownloader.java ..." 267 | fi 268 | # Compiling the Java class 269 | ("$JAVA_HOME/bin/javac" "$javaClass") 270 | fi 271 | if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 272 | # Running the downloader 273 | if [ "$MVNW_VERBOSE" = true ]; then 274 | echo " - Running MavenWrapperDownloader.java ..." 275 | fi 276 | ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") 277 | fi 278 | fi 279 | fi 280 | fi 281 | ########################################################################################## 282 | # End of extension 283 | ########################################################################################## 284 | 285 | export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} 286 | if [ "$MVNW_VERBOSE" = true ]; then 287 | echo $MAVEN_PROJECTBASEDIR 288 | fi 289 | MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" 290 | 291 | # For Cygwin, switch paths to Windows format before running java 292 | if $cygwin; then 293 | [ -n "$M2_HOME" ] && 294 | M2_HOME=`cygpath --path --windows "$M2_HOME"` 295 | [ -n "$JAVA_HOME" ] && 296 | JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` 297 | [ -n "$CLASSPATH" ] && 298 | CLASSPATH=`cygpath --path --windows "$CLASSPATH"` 299 | [ -n "$MAVEN_PROJECTBASEDIR" ] && 300 | MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` 301 | fi 302 | 303 | # Provide a "standardized" way to retrieve the CLI args that will 304 | # work with both Windows and non-Windows executions. 305 | MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" 306 | export MAVEN_CMD_LINE_ARGS 307 | 308 | WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 309 | 310 | exec "$JAVACMD" \ 311 | $MAVEN_OPTS \ 312 | $MAVEN_DEBUG_OPTS \ 313 | -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ 314 | "-Dmaven.home=${M2_HOME}" \ 315 | "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ 316 | ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" 317 | -------------------------------------------------------------------------------- /java-week-api/mvnw.cmd: -------------------------------------------------------------------------------- 1 | @REM ---------------------------------------------------------------------------- 2 | @REM Licensed to the Apache Software Foundation (ASF) under one 3 | @REM or more contributor license agreements. See the NOTICE file 4 | @REM distributed with this work for additional information 5 | @REM regarding copyright ownership. The ASF licenses this file 6 | @REM to you under the Apache License, Version 2.0 (the 7 | @REM "License"); you may not use this file except in compliance 8 | @REM with the License. You may obtain a copy of the License at 9 | @REM 10 | @REM https://www.apache.org/licenses/LICENSE-2.0 11 | @REM 12 | @REM Unless required by applicable law or agreed to in writing, 13 | @REM software distributed under the License is distributed on an 14 | @REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 | @REM KIND, either express or implied. See the License for the 16 | @REM specific language governing permissions and limitations 17 | @REM under the License. 18 | @REM ---------------------------------------------------------------------------- 19 | 20 | @REM ---------------------------------------------------------------------------- 21 | @REM Maven Start Up Batch script 22 | @REM 23 | @REM Required ENV vars: 24 | @REM JAVA_HOME - location of a JDK home dir 25 | @REM 26 | @REM Optional ENV vars 27 | @REM M2_HOME - location of maven2's installed home dir 28 | @REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands 29 | @REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending 30 | @REM MAVEN_OPTS - parameters passed to the Java VM when running Maven 31 | @REM e.g. to debug Maven itself, use 32 | @REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 33 | @REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files 34 | @REM ---------------------------------------------------------------------------- 35 | 36 | @REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' 37 | @echo off 38 | @REM set title of command window 39 | title %0 40 | @REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' 41 | @if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% 42 | 43 | @REM set %HOME% to equivalent of $HOME 44 | if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") 45 | 46 | @REM Execute a user defined script before this one 47 | if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre 48 | @REM check for pre script, once with legacy .bat ending and once with .cmd ending 49 | if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %* 50 | if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %* 51 | :skipRcPre 52 | 53 | @setlocal 54 | 55 | set ERROR_CODE=0 56 | 57 | @REM To isolate internal variables from possible post scripts, we use another setlocal 58 | @setlocal 59 | 60 | @REM ==== START VALIDATION ==== 61 | if not "%JAVA_HOME%" == "" goto OkJHome 62 | 63 | echo. 64 | echo Error: JAVA_HOME not found in your environment. >&2 65 | echo Please set the JAVA_HOME variable in your environment to match the >&2 66 | echo location of your Java installation. >&2 67 | echo. 68 | goto error 69 | 70 | :OkJHome 71 | if exist "%JAVA_HOME%\bin\java.exe" goto init 72 | 73 | echo. 74 | echo Error: JAVA_HOME is set to an invalid directory. >&2 75 | echo JAVA_HOME = "%JAVA_HOME%" >&2 76 | echo Please set the JAVA_HOME variable in your environment to match the >&2 77 | echo location of your Java installation. >&2 78 | echo. 79 | goto error 80 | 81 | @REM ==== END VALIDATION ==== 82 | 83 | :init 84 | 85 | @REM Find the project base dir, i.e. the directory that contains the folder ".mvn". 86 | @REM Fallback to current working directory if not found. 87 | 88 | set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% 89 | IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir 90 | 91 | set EXEC_DIR=%CD% 92 | set WDIR=%EXEC_DIR% 93 | :findBaseDir 94 | IF EXIST "%WDIR%"\.mvn goto baseDirFound 95 | cd .. 96 | IF "%WDIR%"=="%CD%" goto baseDirNotFound 97 | set WDIR=%CD% 98 | goto findBaseDir 99 | 100 | :baseDirFound 101 | set MAVEN_PROJECTBASEDIR=%WDIR% 102 | cd "%EXEC_DIR%" 103 | goto endDetectBaseDir 104 | 105 | :baseDirNotFound 106 | set MAVEN_PROJECTBASEDIR=%EXEC_DIR% 107 | cd "%EXEC_DIR%" 108 | 109 | :endDetectBaseDir 110 | 111 | IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig 112 | 113 | @setlocal EnableExtensions EnableDelayedExpansion 114 | for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a 115 | @endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% 116 | 117 | :endReadAdditionalConfig 118 | 119 | SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" 120 | set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" 121 | set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 122 | 123 | set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 124 | 125 | FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( 126 | IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B 127 | ) 128 | 129 | @REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 130 | @REM This allows using the maven wrapper in projects that prohibit checking in binary data. 131 | if exist %WRAPPER_JAR% ( 132 | if "%MVNW_VERBOSE%" == "true" ( 133 | echo Found %WRAPPER_JAR% 134 | ) 135 | ) else ( 136 | if not "%MVNW_REPOURL%" == "" ( 137 | SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 138 | ) 139 | if "%MVNW_VERBOSE%" == "true" ( 140 | echo Couldn't find %WRAPPER_JAR%, downloading it ... 141 | echo Downloading from: %DOWNLOAD_URL% 142 | ) 143 | 144 | powershell -Command "&{"^ 145 | "$webclient = new-object System.Net.WebClient;"^ 146 | "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ 147 | "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ 148 | "}"^ 149 | "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ 150 | "}" 151 | if "%MVNW_VERBOSE%" == "true" ( 152 | echo Finished downloading %WRAPPER_JAR% 153 | ) 154 | ) 155 | @REM End of extension 156 | 157 | @REM Provide a "standardized" way to retrieve the CLI args that will 158 | @REM work with both Windows and non-Windows executions. 159 | set MAVEN_CMD_LINE_ARGS=%* 160 | 161 | %MAVEN_JAVA_EXE% ^ 162 | %JVM_CONFIG_MAVEN_PROPS% ^ 163 | %MAVEN_OPTS% ^ 164 | %MAVEN_DEBUG_OPTS% ^ 165 | -classpath %WRAPPER_JAR% ^ 166 | "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^ 167 | %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* 168 | if ERRORLEVEL 1 goto error 169 | goto end 170 | 171 | :error 172 | set ERROR_CODE=1 173 | 174 | :end 175 | @endlocal & set ERROR_CODE=%ERROR_CODE% 176 | 177 | if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost 178 | @REM check for post script, once with legacy .bat ending and once with .cmd ending 179 | if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat" 180 | if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd" 181 | :skipRcPost 182 | 183 | @REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' 184 | if "%MAVEN_BATCH_PAUSE%"=="on" pause 185 | 186 | if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE% 187 | 188 | cmd /C exit /B %ERROR_CODE% 189 | -------------------------------------------------------------------------------- /java-week-api/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.springframework.boot 7 | spring-boot-starter-parent 8 | 3.0.5 9 | 10 | 11 | com.linuxtips 12 | java-week-api 13 | 0.0.1-SNAPSHOT 14 | java-week-api 15 | API desenvolvida para a Java week 16 | 17 | 19 18 | 19 | 20 | 21 | org.springframework.boot 22 | spring-boot-starter-data-jpa 23 | 24 | 25 | org.springframework.boot 26 | spring-boot-starter-web 27 | 28 | 29 | 30 | com.h2database 31 | h2 32 | runtime 33 | 34 | 35 | org.springframework.boot 36 | spring-boot-starter-test 37 | test 38 | 39 | 40 | 41 | 42 | 43 | 44 | org.springframework.boot 45 | spring-boot-maven-plugin 46 | 47 | 48 | 49 | 50 | 51 | -------------------------------------------------------------------------------- /java-week-api/src/main/java/com/linuxtips/javaweekapi/JavaWeekApiApplication.java: -------------------------------------------------------------------------------- 1 | package com.linuxtips.javaweekapi; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | 6 | @SpringBootApplication 7 | public class JavaWeekApiApplication { 8 | 9 | public static void main(String[] args) { 10 | SpringApplication.run(JavaWeekApiApplication.class, args); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /java-week-api/src/main/java/com/linuxtips/javaweekapi/controller/CursoController.java: -------------------------------------------------------------------------------- 1 | package com.linuxtips.javaweekapi.controller; 2 | 3 | 4 | import com.linuxtips.javaweekapi.model.Curso; 5 | import com.linuxtips.javaweekapi.service.CursoService; 6 | import org.springframework.http.HttpStatus; 7 | import org.springframework.http.ResponseEntity; 8 | import org.springframework.web.bind.annotation.*; 9 | 10 | import java.util.List; 11 | 12 | @RestController 13 | @RequestMapping("/api") 14 | public class CursoController { 15 | 16 | public CursoController(CursoService cursoService) { 17 | this.cursoService = cursoService; 18 | } 19 | 20 | CursoService cursoService; 21 | 22 | @PostMapping("/cursos") 23 | @ResponseStatus(HttpStatus.CREATED) 24 | public Curso criarCurso(@RequestBody Curso curso) { 25 | return cursoService.criarCurso(curso); 26 | } 27 | 28 | @GetMapping("/cursos") 29 | @ResponseStatus(HttpStatus.OK) 30 | public List listarCursos() { 31 | return cursoService.listarCursos(); 32 | } 33 | 34 | 35 | @GetMapping("/cursos/{id}") 36 | @ResponseStatus(HttpStatus.OK) 37 | public ResponseEntity buscarCursoPeloId 38 | (@PathVariable(value = "id") Long id) { 39 | return cursoService.buscarCursoPeloId(id); 40 | 41 | } 42 | 43 | 44 | @PutMapping("/cursos/{id}") 45 | @ResponseStatus(HttpStatus.OK) 46 | public ResponseEntity atualizarCursoPeloId 47 | (@PathVariable(value = "id") Long id, 48 | @RequestBody Curso curso) { 49 | return cursoService.atualizarCursoPeloId(curso, id); 50 | 51 | } 52 | 53 | 54 | @DeleteMapping("/cursos/{id}") 55 | @ResponseStatus(HttpStatus.NO_CONTENT) 56 | public ResponseEntity excluirCursoPeloId 57 | (@PathVariable(value = "id") Long id) { 58 | return cursoService.excluirCursoPeloId(id); 59 | 60 | } 61 | 62 | 63 | } 64 | -------------------------------------------------------------------------------- /java-week-api/src/main/java/com/linuxtips/javaweekapi/model/Curso.java: -------------------------------------------------------------------------------- 1 | package com.linuxtips.javaweekapi.model; 2 | 3 | import jakarta.persistence.*; 4 | 5 | 6 | @Entity 7 | @Table(name = "curso") 8 | public class Curso { 9 | 10 | @Id 11 | @GeneratedValue(strategy = GenerationType.IDENTITY) 12 | private Long id; 13 | 14 | public Long getId() { 15 | return id; 16 | } 17 | 18 | public void setId(Long id) { 19 | this.id = id; 20 | } 21 | 22 | public String getNome() { 23 | return nome; 24 | } 25 | 26 | public void setNome(String nome) { 27 | this.nome = nome; 28 | } 29 | 30 | public Double getPreco() { 31 | return preco; 32 | } 33 | 34 | public void setPreco(Double preco) { 35 | this.preco = preco; 36 | } 37 | 38 | public String getPessoaInstrutora() { 39 | return pessoaInstrutora; 40 | } 41 | 42 | public void setPessoaInstrutora(String pessoaInstrutora) { 43 | this.pessoaInstrutora = pessoaInstrutora; 44 | } 45 | 46 | @Column(nullable = false) 47 | private String nome; 48 | 49 | 50 | @Column(nullable = false) 51 | private Double preco; 52 | 53 | @Column(nullable = false) 54 | private String pessoaInstrutora; 55 | 56 | 57 | } 58 | -------------------------------------------------------------------------------- /java-week-api/src/main/java/com/linuxtips/javaweekapi/repository/CursoRepository.java: -------------------------------------------------------------------------------- 1 | package com.linuxtips.javaweekapi.repository; 2 | 3 | import com.linuxtips.javaweekapi.model.Curso; 4 | import org.springframework.data.jpa.repository.JpaRepository; 5 | import org.springframework.stereotype.Repository; 6 | 7 | 8 | @Repository 9 | public interface CursoRepository extends JpaRepository { 10 | } 11 | -------------------------------------------------------------------------------- /java-week-api/src/main/java/com/linuxtips/javaweekapi/service/CursoService.java: -------------------------------------------------------------------------------- 1 | package com.linuxtips.javaweekapi.service; 2 | 3 | import com.linuxtips.javaweekapi.model.Curso; 4 | import com.linuxtips.javaweekapi.repository.CursoRepository; 5 | import org.springframework.http.ResponseEntity; 6 | import org.springframework.stereotype.Service; 7 | 8 | import java.util.List; 9 | 10 | @Service 11 | public class CursoService { 12 | 13 | public CursoService(CursoRepository cursoRepository) { 14 | this.cursoRepository = cursoRepository; 15 | } 16 | 17 | private CursoRepository cursoRepository; 18 | 19 | public Curso criarCurso(Curso curso){ 20 | return cursoRepository.save(curso); 21 | } 22 | 23 | 24 | public List listarCursos(){ 25 | return cursoRepository.findAll(); 26 | } 27 | 28 | public ResponseEntity buscarCursoPeloId 29 | (Long id){ 30 | return cursoRepository.findById(id) 31 | .map(curso -> ResponseEntity.ok().body(curso)) 32 | .orElse(ResponseEntity.notFound().build()); 33 | } 34 | 35 | 36 | public ResponseEntity atualizarCursoPeloId(Curso curso, Long id){ 37 | return cursoRepository.findById(id) 38 | .map(cursoToUpdate -> { 39 | cursoToUpdate.setNome(curso.getNome()); 40 | cursoToUpdate.setPessoaInstrutora(curso.getPessoaInstrutora()); 41 | cursoToUpdate.setPreco(curso.getPreco()); 42 | Curso updated = cursoRepository.save(cursoToUpdate); 43 | return ResponseEntity.ok().body(updated); 44 | }).orElse(ResponseEntity.notFound().build()); 45 | } 46 | 47 | 48 | public ResponseEntity excluirCursoPeloId 49 | (Long id){ 50 | return cursoRepository.findById(id) 51 | .map(cursoToDelete -> { 52 | cursoRepository.deleteById(id); 53 | return ResponseEntity.noContent().build(); 54 | }).orElse(ResponseEntity.notFound().build()); 55 | } 56 | 57 | 58 | 59 | 60 | 61 | 62 | } 63 | -------------------------------------------------------------------------------- /java-week-api/src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | spring.h2.console.enabled=true 2 | 3 | spring.datasource.url=jdbc:h2:mem:cursos 4 | spring.datasource.driverClassName=org.h2.Driver 5 | spring.datasource.username=sa 6 | spring.datasource.password= 7 | 8 | spring.jpa.show-sql=true 9 | spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect 10 | spring.jpa.hibernate.ddl-auto=update 11 | -------------------------------------------------------------------------------- /java-week-api/src/test/java/com/linuxtips/javaweekapi/JavaWeekApiApplicationTests.java: -------------------------------------------------------------------------------- 1 | package com.linuxtips.javaweekapi; 2 | 3 | import org.junit.jupiter.api.Test; 4 | import org.springframework.boot.test.context.SpringBootTest; 5 | 6 | @SpringBootTest 7 | class JavaWeekApiApplicationTests { 8 | 9 | @Test 10 | void contextLoads() { 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /orientacao-a-objetos/.gitignore: -------------------------------------------------------------------------------- 1 | HELP.md 2 | .gradle 3 | build/ 4 | !gradle/wrapper/gradle-wrapper.jar 5 | !**/src/main/**/build/ 6 | !**/src/test/**/build/ 7 | 8 | ### STS ### 9 | .apt_generated 10 | .classpath 11 | .factorypath 12 | .project 13 | .settings 14 | .springBeans 15 | .sts4-cache 16 | bin/ 17 | !**/src/main/**/bin/ 18 | !**/src/test/**/bin/ 19 | 20 | ### IntelliJ IDEA ### 21 | .idea 22 | *.iws 23 | *.iml 24 | *.ipr 25 | out/ 26 | !**/src/main/**/out/ 27 | !**/src/test/**/out/ 28 | 29 | ### NetBeans ### 30 | /nbproject/private/ 31 | /nbbuild/ 32 | /dist/ 33 | /nbdist/ 34 | /.nb-gradle/ 35 | 36 | ### VS Code ### 37 | .vscode/ -------------------------------------------------------------------------------- /orientacao-a-objetos/abstracao/.gitignore: -------------------------------------------------------------------------------- 1 | HELP.md 2 | .gradle 3 | build/ 4 | !gradle/wrapper/gradle-wrapper.jar 5 | !**/src/main/**/build/ 6 | !**/src/test/**/build/ 7 | 8 | ### STS ### 9 | .apt_generated 10 | .classpath 11 | .factorypath 12 | .project 13 | .settings 14 | .springBeans 15 | .sts4-cache 16 | bin/ 17 | !**/src/main/**/bin/ 18 | !**/src/test/**/bin/ 19 | 20 | ### IntelliJ IDEA ### 21 | .idea 22 | *.iws 23 | *.iml 24 | *.ipr 25 | out/ 26 | !**/src/main/**/out/ 27 | !**/src/test/**/out/ 28 | 29 | ### NetBeans ### 30 | /nbproject/private/ 31 | /nbbuild/ 32 | /dist/ 33 | /nbdist/ 34 | /.nb-gradle/ 35 | 36 | ### VS Code ### 37 | .vscode/ -------------------------------------------------------------------------------- /orientacao-a-objetos/abstracao/Conta.java: -------------------------------------------------------------------------------- 1 | 2 | interface Conta { 3 | 4 | 5 | //abstracao consiste em ocultar detalhes e exibir somente as informacoes necessárias 6 | //na abstração expomos certos métodos que desejamos que as outras classes acessem 7 | //e obrigamos que elas sigam aquele comportamento em específico 8 | //em resumo oculta o que nao precisa ser exposto e cria comportamentos padrões 9 | 10 | public void consultarSaldo(); 11 | public void fazerPix(); 12 | } 13 | -------------------------------------------------------------------------------- /orientacao-a-objetos/abstracao/ContaCorrente.java: -------------------------------------------------------------------------------- 1 | 2 | class ContaCorrente implements Conta { 3 | 4 | @Override 5 | public void consultarSaldo() { 6 | System.out.println("seu saldo é 1234"); 7 | } 8 | 9 | @Override 10 | public void fazerPix() { 11 | System.out.println("digite o valor que voce deseja transferir"); 12 | 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /orientacao-a-objetos/abstracao/ContaPoupanca.java: -------------------------------------------------------------------------------- 1 | 2 | class ContaPoupanca implements Conta { 3 | 4 | 5 | @Override 6 | public void consultarSaldo() { 7 | System.out.println("o saldo da sua conta é 0"); 8 | } 9 | 10 | @Override 11 | public void fazerPix() { 12 | System.out.println("Deu ruim"); 13 | 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /orientacao-a-objetos/abstracao/LinuxTipsBankMain.java: -------------------------------------------------------------------------------- 1 | 2 | public class LinuxTipsBankMain { 3 | 4 | public static void main(String[] args) { 5 | 6 | System.out.println("Seja bem vinda ao linux tips bank"); 7 | ContaCorrente ccKamila = new ContaCorrente(); 8 | ccKamila.consultarSaldo(); 9 | ccKamila.fazerPix(); 10 | 11 | 12 | ContaPoupanca cpKamila = new ContaPoupanca(); 13 | cpKamila.consultarSaldo(); 14 | cpKamila.fazerPix(); 15 | 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /orientacao-a-objetos/encapsulamento/Profissional.java: -------------------------------------------------------------------------------- 1 | public class Profissional { 2 | 3 | //so sao visiveis dentro da classe que estao 4 | private Double salario; 5 | private Integer id; 6 | 7 | 8 | //acessivel por qualquer classe 9 | public Double salariopublic; 10 | public Integer idPublic; 11 | 12 | //acessivel pela classe que o declara , suas subclasses em outros pacotes 13 | //e outras classes do mesmo pacote 14 | protected Double salarioProtected; 15 | protected Integer idProtected; 16 | 17 | 18 | public String trabalharPublic() { 19 | return "trabalhando public"; 20 | 21 | } 22 | 23 | protected String trabalharProtected() { 24 | return "trabalhando protected"; 25 | } 26 | 27 | private String trabalharPrivate() { 28 | return "trabalhando private "; 29 | 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /orientacao-a-objetos/encapsulamento/ProfissionalMain.java: -------------------------------------------------------------------------------- 1 | public class ProfissionalMain { 2 | 3 | public static void main(String[] args) { 4 | 5 | Profissional profissional = new Profissional(); 6 | 7 | 8 | 9 | } 10 | } 11 | -------------------------------------------------------------------------------- /orientacao-a-objetos/heranca/Pessoa.java: -------------------------------------------------------------------------------- 1 | //sublcasse herda da classe principal 2 | 3 | // heranca x composicao: https://imasters.com.br/back-end/heranca-x-composicao 4 | // http://www.dsc.ufcg.edu.br/~jacques/cursos/map/html/pat/herancavscomposicao.htm 5 | 6 | public class Pessoa { 7 | 8 | public static void main(String[] args) { 9 | 10 | PessoaDesenvolvedoraBackend pessoaDesenvolderaBackend = 11 | new PessoaDesenvolvedoraBackend("kamilabackend", "java e spring", 10000.0); 12 | pessoaDesenvolderaBackend.codar(); 13 | 14 | 15 | 16 | PessoaDesenvolvedoraFrontEnd pessoaDesenvolvedoraFrontEnd = 17 | new PessoaDesenvolvedoraFrontEnd("kamilafrontend", "javaescripto", 10000.0); 18 | pessoaDesenvolvedoraFrontEnd.codar(); 19 | 20 | 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /orientacao-a-objetos/heranca/PessoaDesenvolvedora.java: -------------------------------------------------------------------------------- 1 | 2 | 3 | //subclasse herda metodos e comportamentos de uma superclasse 4 | //semelhante a heranca da vida real 5 | //classe base possui serie de metodos 6 | //quem herda é obrigado a usar 7 | public class PessoaDesenvolvedora { 8 | 9 | private String nome; 10 | private String stack; 11 | private Double salario; 12 | 13 | public String getNome() { 14 | return nome; 15 | } 16 | 17 | public void setNome(String nome) { 18 | this.nome = nome; 19 | } 20 | 21 | public String getStack() { 22 | return stack; 23 | } 24 | 25 | public void setStack(String stack) { 26 | this.stack = stack; 27 | } 28 | 29 | public Double getSalario() { 30 | return salario; 31 | } 32 | 33 | public void setSalario(Double salario) { 34 | this.salario = salario; 35 | } 36 | 37 | 38 | public PessoaDesenvolvedora(String nome, String stack, Double salario) { 39 | } 40 | 41 | public void codar() { 42 | System.out.println("bora codar" ); 43 | } 44 | 45 | } 46 | -------------------------------------------------------------------------------- /orientacao-a-objetos/heranca/PessoaDesenvolvedoraBackend.java: -------------------------------------------------------------------------------- 1 | 2 | public class PessoaDesenvolvedoraBackend extends PessoaDesenvolvedora { 3 | 4 | public PessoaDesenvolvedoraBackend(String nome, String stack, Double salario) { 5 | super(nome,stack,salario); 6 | } 7 | 8 | @Override 9 | public void codar() { 10 | super.codar(); 11 | } 12 | } 13 | -------------------------------------------------------------------------------- /orientacao-a-objetos/heranca/PessoaDesenvolvedoraFrontEnd.java: -------------------------------------------------------------------------------- 1 | 2 | 3 | public class PessoaDesenvolvedoraFrontEnd extends PessoaDesenvolvedora { 4 | 5 | public PessoaDesenvolvedoraFrontEnd(String nome, String stack, Double salario) { 6 | super(nome, stack, salario); 7 | } 8 | 9 | @Override 10 | public void codar() { 11 | super.codar(); 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /orientacao-a-objetos/polimorfismo/Pagamento.java: -------------------------------------------------------------------------------- 1 | //polimorfismo -> mesma parte do programa de várias formas diferentes para necessidades diferentes 2 | 3 | 4 | //sobrecarga : variacoes de um mesmo metodo com a lista de argumentos e retorno diferentes (assinatura) 5 | // 6 | 7 | //exemplo de sobrecarga 8 | public class Pagamento { 9 | 10 | 11 | //pagamento a vista 12 | public Double pagamento(Double valor){ 13 | return valor; 14 | } 15 | 16 | 17 | //calcula o valor das parcelas 18 | public Integer pagamento(Integer valorInteger, Integer parcelas ){ 19 | return valorInteger/parcelas; 20 | } 21 | 22 | //juros 23 | public Long pagamento(Integer valorInteger, Integer parcelas, Long juros){ 24 | return (valorInteger/parcelas) + juros; 25 | } 26 | 27 | 28 | } 29 | -------------------------------------------------------------------------------- /orientacao-a-objetos/polimorfismo/sobrescrita/Botao.java: -------------------------------------------------------------------------------- 1 | package sobrescrita; 2 | //sobrescrita mantem retorno e lista de parametros porem com implementação personalizada 3 | public class Botao { 4 | 5 | 6 | public void ligar() { 7 | System.out.println("ligando"); 8 | 9 | } 10 | 11 | public void desligar() { 12 | System.out.println("desligando"); 13 | } 14 | 15 | 16 | } 17 | -------------------------------------------------------------------------------- /orientacao-a-objetos/polimorfismo/sobrescrita/BotaoFogao.java: -------------------------------------------------------------------------------- 1 | package sobrescrita; 2 | 3 | public class BotaoFogao extends Botao { 4 | 5 | @Override 6 | public void ligar() { 7 | // super.ligar(); 8 | System.out.println("bora esquentar a comida"); 9 | } 10 | 11 | @Override 12 | public void desligar() { 13 | super.desligar(); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /orientacao-a-objetos/polimorfismo/sobrescrita/BotaoTV.java: -------------------------------------------------------------------------------- 1 | package sobrescrita; 2 | 3 | public class BotaoTV extends BotaoFogao{ 4 | 5 | @Override 6 | public void ligar() { 7 | 8 | System.out.println("ligando a tv"); 9 | } 10 | 11 | @Override 12 | public void desligar() { 13 | System.out.println("chega de tv por hoje, vai descansar"); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /orientacao-a-objetos/polimorfismo/sobrescrita/Main.java: -------------------------------------------------------------------------------- 1 | package sobrescrita; 2 | 3 | public class Main { 4 | 5 | public static void main(String[] args) { 6 | BotaoFogao botaoFogao = new BotaoFogao(); 7 | botaoFogao.ligar(); 8 | botaoFogao.desligar(); 9 | 10 | BotaoTV botaoTV = new BotaoTV(); 11 | botaoTV.ligar(); 12 | botaoTV.desligar(); 13 | } 14 | 15 | } 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