Answers for "printf hello world"

print hello world in java

public class Hello
{
  	public static void main(String[] args)
    {
      /*Tip System.out.println(); shortcut Type 'sysout'and press Tab */
      System.out.println("Hello world!");
    }
}

c hello world

#include <stdio.h>
int main(0)
{
	printf("Hello World!\n");
    return 0;
}

print hello world in python

# This program prints Hello, world!

print('Hello, world!')

hello world program in c

echo "Hello, World"