Applet - Simple squares and cube with for loop

Question

I need to write an applet that calculates the squares and cubes of the numbers from 0-10 and draws the resulting values in a table format as follows:

Using a for loop. I made the application and it worked fine. I am using eclipse and when try to declare a string to be a number. I receives errors please help! I have attempted to draw the class from my package and it would not work also.

0 0 0
1 1 1
2 4 8
3 9 27
4 16 64
5 25 125
6 36 216
7 49 343
8 64 512
9 81 729
10 100 1000

import java.applet.Applet;
import java.awt.Graphics;

public class countApplet extends Applet 
{

    public void paint(Graphics g) 
    {
        for ( int count = 0 ; count < 10 ; count++ ) 
        {
            count = num1(0); 

            g.drawString( "" , 20  , 20 * ( count + 1 ) );
            g.drawString( "" , 70  , 20 * ( count ^2 ) );
            g.drawString( "" , 120 , 20 * ( count + 1 ) );
        }
    }

}

This is my class I attempt to draw from:

import javax.swing.JOptionPane;
import java.applet.*;
import java.awt.*;

public class calculate
{

    public static void main (String args[])
    {
        int num1 = 0;

        System.out.println("Number" +"\t" +"Square" + "\t" + "Cube");   
        for(int i = 0; i <= 10; i++) 
        {

            System.out.println(i +"\t"+ i * i+"\t" + i* i * i);
        }

    }
}

Maybe a better explanation of how to use Math.sqrt in an applet would help me also?

1) Why code an applet? If it is due to the teacher specifying it, please refer them to [Why CS teachers should **stop** teaching Java applets](http://programmers.blogoverflow.com/2013/05/why-cs-teachers-should-stop-teaching-java-applets/). 2) Why use AWT? See [this answer](http://stackoverflow.com/questions/6255106/java-gui-listeners-without-awt/6255978#6255978) for many good reasons to abandon AWT using components in favor of Swing. — Andrew Thompson, Feb 06 '15 at 01:09
@AndrewThompson yes is its due to the teacher. I cant tell my graduate teacher that ..lol ill really fail. he showed me what he wanted. — DJ Covington, Feb 06 '15 at 22:38
*"I cant tell my graduate teacher that.."* You could always drop an anonymous note off to them. But really they ought to be ashamed of themselves for being so stuck in the past. — Andrew Thompson, Feb 06 '15 at 23:09

score 0 · Answer 1 · answered Feb 05 '15 at 06:40

Naming convention: Class names should start with a capital letter, i.e. Calculate instead of calculate and CountApplet.

Also, having a function called num1 and a variable with the same name is bad practice.

Besides, you are declaring num1 ind main() but never using it.

score 0 · Accepted Answer · answered Feb 05 '15 at 08:44

Error in for loop in your countApplet class.Find the below code

for ( int count = 0 ; count < 10 ; count++ ) 
{
    //count = num1(0); 
    g.drawString( String.valueOf(count) , 20  , 20 * ( count + 1 ) );
    g.drawString( String.valueOf(count*count) , 70  , 20 * ( count + 1 ) );
    g.drawString( String.valueOf(count*count*count) , 120 , 20 * ( count + 1 ) );
}

Applet - Simple squares and cube with for loop

2 Answers2