├── .gitignore
├── HelloWorld.java
└── README.md


/.gitignore:
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1 | *.class
2 | 
3 | 


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/HelloWorld.java:
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1 | public class HelloWorld {
2 |   public static void main(String[] args) {
3 |     System.out.println("Hello world!");
4 |   }
5 | }
6 | 


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/README.md:
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 1 | # Hello world with Java :coffee:
 2 | 
 3 | This is a simple **"Hello world"** done with **Java** programming language.
 4 | 
 5 | ## Source code
 6 | 
 7 | This is the source code of the program:
 8 | 
 9 | ```java
10 | public class HelloWorld {
11 |   public static void main(String[] args) {
12 |     System.out.println("Hello world!");
13 |   }
14 | }
15 | ```
16 | 
17 | Notice that `System.out.println("Hello world!");` shows the string `"Hello world!"` on the screen.
18 | 
19 | ## Compile program
20 | 
21 | To compile the "Hello World" program, type the following:
22 | 
23 | ```console
24 | javac HelloWorld.java
25 | ```
26 | 
27 | ## Excute the program
28 | 
29 | To execute the program, type this:
30 | 
31 | ```console
32 | java HelloWorld
33 | ```
34 | 
35 | 


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