I've got a small little program that I'm trying to write that converts a base10 number to a base2. For some reason my instructor wants us to use stack on this. I've got most of it done but I'm having trouble trying to get the stack converted to an int so that I can pass it back as one number. Somehow I have to Pop the top of my "stack1" in my int "base2". Can somebody show me how to do this??

Thanks

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*; 
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;   
         
public class BaseConversion extends JApplet {

   private JLabel text1, text2;
   private JTextField userField1, userField2;
   private JButton convertButton, clearButton;
   

   public void init() {
     
      text1 = new JLabel("Input a number in base ten: ");
      text2 = new JLabel("Your number in base two: ");
      text1.setForeground(Color.YELLOW);
      text2.setForeground(Color.YELLOW);      

      userField1 = new JTextField(15);
      userField2 = new JTextField(15);      
      
      convertButton = new JButton("Convert");
      clearButton = new JButton("Clear");      
      
      EndingListener buttonEar_convert = new EndingListener();
      convertButton.addActionListener(buttonEar_convert);
      
      EndingListener buttonEar_clear = new EndingListener();
      clearButton.addActionListener(buttonEar_clear);      
      
      Container c = getContentPane();
      c.setLayout(new FlowLayout());
      c.setBackground(Color.BLUE);
      
      c.add(text1);
      c.add(userField1);      
      c.add(text2);
      c.add(userField2);
      c.add(convertButton); 
      c.add(clearButton);       
      
   }
        
private int stackreturn ( int base10 ){
    	
    	int base2, tostack;        
        Stack stack1 = new Stack(); 
        
        if (base10/2!=0 || base10==1){
        	while(base10!=1){
        	
        	tostack = base10%2;
        	stack1.push(new Integer(tostack));
        	        		
        	base10 = base10/2;
        	
        	}
        stack1.push(new Integer(1));
        }


		while (! stack1.empty())
		{
			stack1.pop();
		}       	

    	
    	return base2;
    	
    	}    

public class EndingListener implements ActionListener
{
	public void actionPerformed(ActionEvent e)
	{
		 if (e.getActionCommand().equals("Convert"))
			{
					   int base10, base2;
					   String message; 
					   
					   message = userField1.getText();
					   	
					   BaseConversion test = new BaseConversion();			
                       
                       base10 = Integer.parseInt( message );
                       
                       base2 = test.stackreturn(base10);
                       message = Integer.toString(base2);
                       
                       userField2.setText(message);
                       
                 } 
                 
		 if (e.getActionCommand().equals("Clear"))
			{
                       userField1.setText("");
                       userField2.setText("");
                 }                  
                 
    }
}  

}

i solve for u:

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*; 
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;   

public class sampleapplet extends JApplet {

   private JLabel text1, text2;
   private JTextField userField1, userField2;
   private JButton convertButton, clearButton;


   public void init() {

      text1 = new JLabel("Input a number in base ten: ");
      text2 = new JLabel("Your number in base two: ");
      text1.setForeground(Color.YELLOW);
      text2.setForeground(Color.YELLOW);      

      userField1 = new JTextField(15);
      userField2 = new JTextField(15);      

      convertButton = new JButton("Convert");
      clearButton = new JButton("Clear");      

      EndingListener buttonEar_convert = new EndingListener();
      convertButton.addActionListener(buttonEar_convert);


      clearButton.addActionListener(buttonEar_convert);      

      Container c = getContentPane();
      c.setLayout(new FlowLayout());
      c.setBackground(Color.BLUE);

      c.add(text1);
      c.add(userField1);      
      c.add(text2);
      c.add(userField2);
      c.add(convertButton); 
      c.add(clearButton);       

   }

private String stackreturn ( int base10 ){

        int tostack=0;  
        String base2 ="";
        Stack stack1 = new Stack(); 

        if (base10/2 != 0 || base10==1){
            while(base10 != 1){

            tostack = base10 % 2;
            stack1.push(new Integer(tostack));                                      
            base10 = base10/2;

            }
        stack1.push(new Integer(1));
        }


        while (! stack1.empty())
        {
            try{
                base2 = base2 + stack1.pop().toString();                
            }
            catch(Exception e)
            {
                e.printStackTrace();
            }
        }                   
        return base2;

        }    

public class EndingListener implements ActionListener
{
    public void actionPerformed(ActionEvent e)
    {
         if (e.getActionCommand().equals("Convert"))
            {
                       int base10;                     
                       String message, base2; 

                       message = userField1.getText();

                       sampleapplet test = new sampleapplet();          

                       base10 = Integer.parseInt( message );

                       base2 = test.stackreturn(base10);
                       userField2.setText(base2.toString());

                 } 

         if (e.getActionCommand().equals("Clear"))
            {
                       userField1.setText("");
                       userField2.setText("");
                 }                  

    }
}  

}

Edited 3 Years Ago by Dani: Formatting fixed

Comments
Don't do other's homework, it is against the terms and agreements you agreed to by signing up here (and does not help them).

Don't do other's homwowrk for them. It is against the terms and agreements you agreed to when you signed up here.

And, if you absolutely must post code, please use code tags.

Thanks for the help kumarprabu. I see I should have used String for stackreturn so that I can add each stack to the string.

Thanks again.

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