├── .gitignore
├── README.md
├── pom.xml
└── src
    ├── main
        └── java
        │   └── com
        │       └── stripe
        │           └── interview
        │               └── Main.java
    └── test
        └── java
            └── com
                └── stripe
                    └── interview
                        └── MainTest.java


/.gitignore:
--------------------------------------------------------------------------------
 1 | *.class
 2 | 
 3 | # Mobile Tools for Java (J2ME)
 4 | .mtj.tmp/
 5 | 
 6 | # Package Files #
 7 | *.jar
 8 | *.war
 9 | *.ear
10 | 
11 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
12 | hs_err_pid*
13 | 
14 | # Maven stuff:
15 | target/
16 | 
17 | # IntelliJ IDEA stuff:
18 | .idea/
19 | *.iml


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | ## Motivation:
 2 | 
 3 | At Stripe, our interview process has some interviews where you write
 4 | code, typically on your laptop.
 5 | 
 6 | We've noticed that more often than not, we've had to spend a significant
 7 | portion of the interview helping candidates setup a maven-based Java
 8 | environment on their personal laptops.
 9 | 
10 | We've created a (rather ad-hoc) maven project to help candidates
11 | determine if their laptops were setup to write Java, so interviews can
12 | be about evaluating the candidate, and not the way their environment is
13 | setup.
14 | 
15 | # Getting Ready
16 | 
17 | If you can run these commands, your development environment is probably
18 | ready for Stripe's Java interview questions:
19 | 
20 | ```bash
21 | $ java -version
22 | $ git clone [the project\'s URL]
23 | $ cd [into the project]
24 | $ mvn clean -e install
25 | $ java -jar target/sample-HEAD-SNAPSHOT.jar
26 | ```
27 | 
28 | # About This Project:
29 | 
30 | ## Dependencies & Configuration:
31 | 
32 | Don't read into the chosen libraries too much.
33 | We've added them to help alleviate two main problems that may be seen
34 | after maven is setup:
35 | - Maven works correctly with third-party dependencies
36 | - Maven's classpath is setup correctly
37 | 
38 | ## I prefer Gradle/Pants/Ivy/Makefiles/Bespoke Bash Scripts, do I need to use this?
39 | 
40 | If you know prefer different configuration files, that's awesome.
41 | Some interview questions may ask to implement something from nothing,
42 | and some may want to watch you interact with a pre-existing codebase.
43 | For the former, it doesn't matter what you use, as long as you're able
44 | to get things setup quickly.
45 | 
46 | Concerning the latter: Maven tends to be the most common format Java
47 | libraries are distributed as.
48 | Because of that, all pre-existing codebases we use in our interviews use
49 | maven.
50 | We aren't really specifically interested in how you write Maven project
51 | files, but want you to quickly get them up and running.
52 | 
53 | ## Useful References:
54 | - [Installing Maven](https://maven.apache.org/install.html)
55 |   - [using Homebrew, on OS X](https://formulae.brew.sh/formula/maven)
56 |   - [more instructions for Windows](https://maven.apache.org/guides/getting-started/windows-prerequisites.html)
57 | - [Apache Maven FAQ](https://maven.apache.org/general.html)
58 | 


--------------------------------------------------------------------------------
/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 3 | 
 4 |   <modelVersion>4.0.0</modelVersion>
 5 |   <parent>
 6 |     <groupId>org.sonatype.oss</groupId>
 7 |     <artifactId>oss-parent</artifactId>
 8 |     <version>7</version>
 9 |   </parent>
10 | 
11 |   <groupId>com.stripe.interview</groupId>
12 |   <artifactId>sample</artifactId>
13 |   <version>HEAD-SNAPSHOT</version>
14 | 
15 |   <packaging>jar</packaging>
16 |   <name>Stripe Interview Sample</name>
17 | 
18 | 
19 |   <description>A cute maven project to help you double-check your Maven environment is setup correctly.</description>
20 | 
21 |   <properties>
22 |     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
23 | 
24 |     <java.version>1.8</java.version>
25 |     <guava.version>30.1.1-jre</guava.version>
26 |     <junit.version>4.13.1</junit.version>
27 |   </properties>
28 | 
29 |   <dependencies>
30 |     <dependency>
31 |       <groupId>com.google.guava</groupId>
32 |       <artifactId>guava</artifactId>
33 |       <version>${guava.version}</version>
34 |     </dependency>
35 | 
36 |     <dependency>
37 |       <groupId>junit</groupId>
38 |       <artifactId>junit</artifactId>
39 |       <version>${junit.version}</version>
40 |       <scope>test</scope>
41 |     </dependency>
42 |   </dependencies>
43 | 
44 |   <build>
45 |     <pluginManagement>
46 |       <plugins>
47 |         <plugin>
48 |           <groupId>org.apache.maven.plugins</groupId>
49 |           <artifactId>maven-jar-plugin</artifactId>
50 |           <version>2.4</version>
51 |           <configuration>
52 |             <archive>
53 |               <manifest>
54 |                 <addClasspath>true</addClasspath>
55 |                 <classpathPrefix>lib/</classpathPrefix>
56 |                 <mainClass>com.stripe.interview.Main</mainClass>
57 |               </manifest>
58 |             </archive>
59 |           </configuration>
60 |         </plugin>
61 |         <plugin>
62 |           <groupId>org.apache.maven.plugins</groupId>
63 |           <artifactId>maven-compiler-plugin</artifactId>
64 |           <version>3.0</version>
65 |           <inherited>true</inherited>
66 |           <configuration>
67 |             <source>${java.version}</source>
68 |             <target>${java.version}</target>
69 |             <compilerArgument>-Xlint:unchecked</compilerArgument>
70 |           </configuration>
71 |         </plugin>
72 |       </plugins>
73 |     </pluginManagement>
74 |   </build>
75 | </project>
76 | 


--------------------------------------------------------------------------------
/src/main/java/com/stripe/interview/Main.java:
--------------------------------------------------------------------------------
 1 | package com.stripe.interview;
 2 | 
 3 | import com.google.common.html.HtmlEscapers;
 4 | 
 5 | public class Main {
 6 | 	public static void main(String... args) {
 7 | 		System.out.println("Hello world!");
 8 | 	}
 9 | 
10 | 	public static String useGuavaForSomeReason(String input) {
11 | 		return HtmlEscapers.htmlEscaper().escape(input);
12 | 	}
13 | }
14 | 


--------------------------------------------------------------------------------
/src/test/java/com/stripe/interview/MainTest.java:
--------------------------------------------------------------------------------
 1 | package com.stripe.interview;
 2 | 
 3 | import org.junit.Assert;
 4 | import org.junit.Test;
 5 | 
 6 | import static org.junit.Assert.*;
 7 | 
 8 | public class MainTest {
 9 | 	@Test
10 | 	public void testUseGuavaForSomeReason() throws Exception {
11 | 		String actual = Main.useGuavaForSomeReason("hello!<a href>");
12 | 		Assert.assertEquals("uh oh, the tests failed!", "hello!&lt;a href&gt;", actual);
13 | 	}
14 | }


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