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A 'Hello World' program is generally the simplest computer [[program]] possible in a [[programming language]].

== Uses of a hello world program ==

* Learning the basic [[syntax]] of a new [[programming language]]: it's often the easiest thing you can program
* Testing that a [[build tool]] is set up correctly

== Example: hello world in [[Python]] ==
<syntaxhighlight lang="python" line="1">
print("Hello World")
</syntaxhighlight>

== Example: hello world in [[C]] ==
<syntaxhighlight lang="c" line="1">
#include <stdio.h>
int main(int argc, char* argv[]) {
printf("Hello World");
return 0;
}
</syntaxhighlight>

== Example: hello world in [[Java]] ==
<syntaxhighlight lang="java" line="1">
// File name: MyProgram.java
public class MyProgram {
public static void main(String[] args) {
System.out.println("Hello World");
}
}
</syntaxhighlight>

Hello world program - Revision history

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