Java Code

import java.awt.*;
import javax.swing.*;
	
public class Calculate extends JApplet
{
	   public void paint (Graphics g )
	   {
			int addition = getAdd( 2, 7 );
			String added = "2 + 7 = " + addition;
			g.drawString ( added, 0, 12 );
	
			String subtracted = "2 - 7 = " + getSubtract( 2, 7 );
			g.drawString ( subtracted, 0, 24 );
	   }
	   public int getAdd( int num1, int num2 )
	   { 
			return num1 + num2;
	   }
	   public int getSubtract( int num1, int num2 )
	   { 
			return num1 - num2;
	   }
}