Incorporate: For, and while loop,a nested pair for both,and to add graphics

Question

// I have done the class but
need help one adding one while loop, one for loop, and a nested pair loops using for and while, and if posbile to add on a dynamite graphics. // i am doing this for a brithday present for my brother who is a java programer
and would be happy to see his little brother make a java programe for him
//class file
import java.awt.*;
public class ZZZCalculator
        private double amount;
        public ZZZCalculator (double x)
                amount= x;
        public void addAmt (double inputNumber)
                amount= amount +inputNumber;
        public void divideAmt (double inputNumber)
                amount=amount/inputNumber;
        public void subtractAmt (double inputNumber)
                amount=amount-inputNumber;
        public void multiplyAmt (double inputNumber)
                amount=amount*inputNumber;
        public void display (Graphics g)
                g.drawString (""+ amount, 150,100);
        public void setAmt(double x)
                amount= x;
  // Pgm file
import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
public class ZZZCalc extends Applet implements ActionListener {
        ZZZCalculator henrietta;
        TextField amtPlace;
        Button adder;
        Button divide;
        Button subtract;
        Button multiply;            
        public void init()
                henrietta=new ZZZCalculator(0.0);
                amtPlace=new TextField(10);
                amtPlace.addActionListener(this);
                add(amtPlace);
                adder=new Button ("+");
                adder.addActionListener(this);
                add(adder);
                divide=new Button ("/");
                divide.addActionListener(this);
                add(divide);
                subtract=new Button ("-");
                subtract.addActionListener(this);
                add(subtract);
                multiply=new Button ("*");
                multiply.addActionListener(this);
                add(multiply);
        public void paint (Graphics g)
                g.drawString("amount:", 100,100);
                henrietta.display(g);
        public void actionPerformed(ActionEvent e)
                if (e. getSource()==amtPlace)
                double amt= Double.parseDouble (amtPlace.getText());
                henrietta.setAmt(amt);
                repaint();
                if(e.getSource()==adder)
                double amt= Double.parseDouble (amtPlace.getText());
                henrietta.addAmt(amt);
                repaint();
                if(e.getSource()==divide)
                double amt= Double.parseDouble (amtPlace.getText());
                henrietta.divideAmt(amt);
                repaint();
                if(e.getSource()==subtract)
                double amt= Double.parseDouble (amtPlace.getText());
                henrietta.subtractAmt(amt);
                repaint();
                if(e.getSource()==multiply)
                double amt= Double.parseDouble (amtPlace.getText());
                henrietta. multiplyAmt(amt);
               repaint();
//thank you for the help
i have just started working on java and this is my frist program i am working on and any help i can get would inprove my understanding of java.
Thank you very much for you help

Answer 1

hey there... this is Rebecca
try this somewhere in the prog.
n = Math.pow(x,y)
where n is an int you declare...
and x and y are the numbers... as in
n = 10^3
where 10 = x and 3 = y