testclass.java

Line, Poin, and Rectangle Class

package project1;

import java.text.DecimalFormat;
import javax.swing.JOptionPane;

public class TestClass
{
    public static void main(String[] args)
    {
     
        RectangleClass rectangle = new RectangleClass (12, 24, 6.5, 18.5);

        String output = " The Point's X coordinate is: " +
      rectangle.getX() + "\n\n The Point's Y coordinate is: " +
      rectangle.getY() + "\n\n The Length of the line is: " +
      rectangle.getLength() + "\n\n The Height of the line is: " +
      rectangle.getHeight();

      rectangle.setX (44);
      rectangle.setY (22);
      rectangle.setLength (11.5);
      rectangle.setHeight (20);

        output +=
                "\n\n\nNew Rectangle:\n"
                + rectangle.toString();

        DecimalFormat twoDigits = new DecimalFormat ("0.00");

        output += "\n\n     The X coordinate: " + rectangle.getX() +
                "\n\n     The Y coordinate: " + rectangle.getY();

        output += "\n\n     The Perimeter: " +
                twoDigits.format(rectangle.getPerimeter());

   
        output += "\n\n     The Area: " +
                twoDigits.format(rectangle.getArea()) + "\n\n\n";

    
        JOptionPane.showMessageDialog( null, output);
   
        System.exit (0);
  }
}