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## HelloWorld
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### Setup
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Install the JDK of Java 17 [here](https://www.oracle.com/java/technologies/javase/jdk17-archive-downloads.html)
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Create dedicated folder to create your files for this exercise.
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If you want to test your code, you need to compile your code :
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```shell
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javac *.java -d build
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```
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Then run the following command :
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```shell
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java -cp build ExerciseRunner
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```
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to get the output of your function in your console.
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To edit your code, you can use any IDE or text editor, though IDEA IntelliJ or JetBrains are specially dedicated and recommended.
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On Gitea, create a repository named `((ROOT))`, and push all Java files into a folder with a name matching the respective exercise.
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### Instructions
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Create a file `HelloWorld.java`.
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Write a function `helloworld` that return the string 'Hello World !'.
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### Expected Functions
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```java
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public class HelloWorld {
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public static String helloWorld() {
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// your code here
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}
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}
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```
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### Usage
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Here is a possible ExerciseRunner.java to test your function :
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```java
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public class ExerciseRunner {
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public static void main(String[] args) {
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System.out.println(HelloWorld.helloWorld());
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}
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}
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```
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and its output :
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```shell
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$ javac *.java -d build
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$ java -cp build ExerciseRunner
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Hello World !
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$
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```
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