Calc Question

[Kid Programmer]

Hey guys. Once again I am making a calculator like I do so much. I ran into an error with this program though. I just couldn't figure out how to make the operators work. I want this calculator to be like a standard calculator on http://calculator.com/ So how do I do this? Here is my source code:

/******************************
 ** Program Name: Calculator **
 ** Date: June 3rd, 2008     **
 ** Author: Edward Sanger    **
******************************/
 
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
abstract public class calculator implements ActionListener
{    
        public static void main(String[] args)
        {
 
                //declare variables                                                                                                                                                                              
                final JFrame frame;
                final JTextField num;
                final JButton add, subtract, multiply, divide;
                final JButton zero, one, two, three, four, five, six, seven, eight, nine;
                final JButton decimal, clear;
                Container contentPane;
 
                //create a new JFrame and set its title to "Calculator"                                                                                                                                          
                frame = new JFrame();
                frame.setTitle("Calculator");                                                                                                                                                                                                                                                                                                                                      
 
                //set the frames layout
                frame.setLayout(null);
 
                //create a new container
                contentPane = frame.getContentPane();
 
                //create components                                                                                                                                                                              
                num = new JTextField("", 20);
 
                add = new JButton("+");
                subtract = new JButton("-");
                multiply = new JButton("*");
                divide = new JButton("/");
 
 
                zero = new JButton("0");
                one = new JButton("1");
                two = new JButton("2");
                three = new JButton("3");
                four = new JButton("4");
                five = new JButton("5");
                six = new JButton("6");
                seven = new JButton("7");
                eight = new JButton("8");
                nine = new JButton("9");
 
                decimal = new JButton(".");
                clear = new JButton("c");
 
                //make num uneditable
                num.setEditable(false);
 
                //apply the components                                                                                                                                                                           
                contentPane.add(num);
 
                contentPane.add(one);
                contentPane.add(two);
                contentPane.add(three);
                contentPane.add(four);
                contentPane.add(five);
                contentPane.add(six);
                contentPane.add(seven);
                contentPane.add(eight);
                contentPane.add(nine);
                contentPane.add(zero);
 
                contentPane.add(add);
                contentPane.add(subtract);
                contentPane.add(multiply);
                contentPane.add(divide);
 
                contentPane.add(decimal);
                contentPane.add(clear);
 
                //set the bounds for all the components
                num.setBounds(20, 20, 225, 50);
 
                one.setBounds(20, 200, 50, 50);
                two.setBounds(80, 200, 50, 50);
                three.setBounds(140, 200, 50, 50);
                four.setBounds(20, 140, 50, 50);
                five.setBounds(80, 140, 50, 50);
                six.setBounds(140, 140, 50, 50);
                seven.setBounds(20, 80, 50, 50);
                eight.setBounds(80, 80, 50, 50);
                nine.setBounds(140, 80, 50, 50);
                zero.setBounds(20, 260, 50, 50);
 
                decimal.setBounds(80, 260, 50, 50);
                clear.setBounds(140, 260, 50, 50);
 
                add.setBounds(200, 260, 50, 50);
                subtract.setBounds(200, 200, 50, 50);
                multiply.setBounds(200, 140, 50, 50);
                divide.setBounds(200, 80, 50, 50);
 
                //set the events to happen for the buttons                                                                                                                                                       
                one.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent one)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 1);
                        }
                    });
                two.addActionListener(new ActionListener()
                {
                        public void actionPerformed(ActionEvent two)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 2);
                        }
                    });
                three.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent three)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 3);
                        }
                    });
                four.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent four)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 4);
                        }
                    });
                five.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent five)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 5);
                        }
                    });
                six.addActionListener(new ActionListener()
                {
                    public void actionPerformed(ActionEvent seven)
                    {
                        String number;
                        number = num.getText();
                        num.setText("" + number + 6);
                    }
                });
                seven.addActionListener(new ActionListener()
                {
                    public void actionPerformed(ActionEvent seven)
                    {
                        String number;
                        number = num.getText();
                        num.setText("" + number + 7);
                    }
                });
                    eight.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent eight)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 8);
                        }
                    });
                    nine.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent nine)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 9);
                        }
                    });
                    zero.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent zero)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + 0);
                        }
                    });
                    decimal.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent decimal)
                        {
                            String number;
                            number = num.getText();
                            num.setText("" + number + ".");
                        }
                    });
                    clear.addActionListener(new ActionListener()
                    {
                        public void actionPerformed(ActionEvent clear) 
                        {
                            num.setText("");
                        }
                    });
                add.addActionListener(new ActionListener()
                {
            public void actionPerformed(ActionEvent add)
            {        
            }
                });
 
                //frame settings                                                                                                                                                                                 
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.pack();
                frame.setSize(300, 375);
                frame.setVisible(true);
        }
}
 

And also hi everyone because I haven't seen you in a long time.

[JosAH]

Hey guys. Once again I am making a calculator like I do so much. I ran into an error with this program though. I just couldn't figure out how to make the operators work. I want this calculator to be like a standard calculator on http://calculator.com/ So how do I do this? Here is my source code:[ snip ]

No hard feelings but you can't just dump your code here, throw your hands up in
the air and say "this doesn't work". It just doesn't work that way.

kind regards,

Jos

[r035198x]

... It just doesn't work that way.

kind regards,

Jos

What might work is if you explain further what you mean by "it doesn't work".

[Kid Programmer]

No hard feelings but you can't just dump your code here, throw your hands up in
the air and say "this doesn't work". It just doesn't work that way.

kind regards,

Jos

I wasn't dumping my code. And look at the post below yours.

[JosAH]

I wasn't dumping my code. And look at the post below yours.

You were dumping your code here and what about r035198x's post? Note that
in e.g. Sun's Java forum you could've been hanged for your attitude: what exactly
doesn't work the way you want it to work and what have you tried yourself. I see
nothing at all in all that code of yours that even attempts to add two numbers
properly. We can always talk about the other operators later but please remind:
we are not going to do your work for you; you want a calculator so you have to
program one. All we can do is give you a bit of help when you're stuck. And what
about your previous calculator programs? Didn't they work either?

kind regards,

Jos

[Kid Programmer]

You were dumping your code here and what about r035198x's post? Note that
in e.g. Sun's Java forum you could've been hanged for your attitude: what exactly
doesn't work the way you want it to work and what have you tried yourself. I see
nothing at all in all that code of yours that even attempts to add two numbers
properly. We can always talk about the other operators later but please remind:
we are not going to do your work for you; you want a calculator so you have to
program one. All we can do is give you a bit of help when you're stuck. And what
about your previous calculator programs? Didn't they work either?

kind regards,

Jos

Angry aren't we. But anyways I was asking how to get it to add the numbers. And I don't want it to add two, but as many as you would like. Like what the standard calculator at calculator.com (which I said in my first post in the this thread) can do. And my previous calculators weren't as good. They were text based which can have a lot of errors if for example you asked the user to enter an operator and they typed "aksdfhasdf". Other ones were in GUIs but they could only add two numbers. I just wanted help on how I should get it to work. I tried getting it to work but I got errors and things so I deleted that code. That's why in the code I showed you I didn't try to add numbers. And maybe you could do what r035198x's said which was "What might work is if you explain further what you mean by 'it doesn't work'."

[JosAH]

Angry aren't we.

No I'm not angry; read Henry Weinbergs' "egoless programming" to understand
what I'm talking about. Just learn and learn how to program.

Jos

[Kid Programmer]

No I'm not angry; read Henry Weinbergs' "egoless programming" to understand
what I'm talking about. Just learn and learn how to program.

Jos

I have been learning. But I ecountered a problem because I couldn't find what to do. I will learn and learn how to program more if you tell me what to do. I'm not asking for the actual code. I'm asking for help on what to do. Now could you please help me.