C

#include <stdio.h>

int main()
{
  puts("Hello, World!");

  return 0;
}

C++

#include <iostream>

int main()
{
  std::cout << "Hello, World!" << std::endl;
}

Java

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

Python

print("Hello, World!")