java code

              public static void main(String args[])
              {
                   System.out.println("Hello world!");
              }

Result

           Hollo world! only printing
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goodmanmorx
seo services

public static void main(String args[]) {
  System.out.println("Hello world!");
}

<?php
echo'test :P ';
?>

C++:

#include <iostream>
using namespace std;
int main (){
  cout<<"test :P "<<endl;
  system ("pause");
  return 0;
}