Assignment #93 and DistanceFormula

Code

      /// Name: Jason Kim
      /// Period: 7
      /// Program Name: DistanceFormula
      /// File Name: DistanceFormula.java
      /// Date Finished:12/14/15
      
      public class DistanceFormula
      {
      	public static void main( String[] args )
      	{
      		double d1 = distance(-2,1 , 1,5);
      		System.out.println(" (-2,1) to (1,5) => " + d1 );
       
      		double d2 = distance(-2,-3 , -4,4);
      		System.out.println(" (-2,-3) to (-4,4) => " + d2 );
       
      		System.out.println(" (2,-3) to (-1,-2) => " + distance(2,-3,-1,-2) );
       
      		System.out.println(" (4,5) to (4,5) => " + distance(4,5,4,5) );
      	}
       
      	public static double distance( int x1, int y1, int x2, int y2 )
      	{
              double D;
              D = Math.sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));      
              return D;
          }
      }

    

Picture of the output