public class Functions{
	
	
	public static void main(String arg[]){
		greet1();
		System.out.println(greet2());
		greet3("Every body");
		String k;
		k = greet4("Every Student");
		System.out.println(k);
		
	}
	
	public static void greet1(){
		System.out.println("Hello World 1");
	}
	
	public static String greet2(){
		return "Hello World 2";
	}
	
	public static void greet3(String x){
		System.out.println("Hello...3 " + x);
	}
	
	public static String greet4(String s){
		return "Hello...4 " + s;
	}
}

    Source: geocities.com/dvshah