// Writing your own methods

public class MethodDemo1 {
  public static void main ( String args[] ) {
    int result;

    System.out.println( square(4) );
 
    result = MethodDemo1.square(4);
    System.out.println( result );

    printString("Hello Methods!");
  }

  public static int square( int x ) {
    return x * x;
  }

  public static void printString( String str ) {
    System.out.println( str );
  }
}