Updating Output

[Yokomoko]

Ok so I wrote a program to calculate the max, min, and average of five numbers the user inputs. The only thing I want to do now is make it so that where my program displays "Result" it displays button related phrases. So if I press MAXIMUM it says "The Max is:", and if I then press "AVERAGE" it changes the text to "The Average is:". Does anyone know a simple way to do this?

Here is my code:

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class MaxMinAvgGUI extends JFrame
{
	//frame
	private static final int WIDTH  = 250;
   	private static final int HEIGHT = 280;

	//component objects
	private JLabel num1Label, num2Label, num3Label, num4Label, num5Label, blankLabel, resultLabel;
  	private JTextField num1TextField, num2TextField, num3TextField, num4TextField;   		private JTextField 

num5TextField, resultTextField;
  	private JButton maxB, minB, avgB;

  	 //event handlers
  	 private MaxButtonHandler      maxbHandler;
  	 private MinButtonHandler minbHandler;
  	 private AvgButtonHandler avgbHandler;

   public MaxMinAvgGUI() //defines frame
   {
	setTitle( "Max, Min, and Avg" ); //title of the frame
      	setSize( WIDTH, HEIGHT );   //frame size
	
	Container pane = getContentPane(); // get content pane

	GridLayout aGrid = new GridLayout( 8, 2 ); //grid layout

	pane.setLayout(aGrid);

     	 // JLabel objects
     	 num1Label   = new JLabel( "1st Number" );
     	 num2Label   = new JLabel( "2nd Number" );
     	 num3Label   = new JLabel( "3rd Number" );
     	 num4Label   = new JLabel( "4th Number" );
     	 num5Label   = new JLabel( "5th Number" );
      	 blankLabel = new JLabel( " " );
      	 resultLabel = new JLabel( "Result" );

     	 // JTextField objects
     	 num1TextField   = new JTextField( 10 );
     	 num2TextField   = new JTextField( 10 );
     	 num3TextField   = new JTextField( 10 );
     	 num4TextField   = new JTextField( 10 );
     	 num5TextField   = new JTextField( 10 );
      	 resultTextField = new JTextField( 10) ;

    	  // JButton objects
    	  maxB      = new JButton( "MAXIMUM" );
     	  maxbHandler      = new MaxButtonHandler();
     	  maxB.addActionListener(maxbHandler);

    	  minB = new JButton( "MINIMUM" );
     	  minbHandler      = new MinButtonHandler();
     	  minB.addActionListener(minbHandler);

    	  avgB = new JButton( "AVERAGE" );
     	  avgbHandler      = new AvgButtonHandler();
     	  avgB.addActionListener(avgbHandler);

    	  // add objects to the pane
    	  pane.add( num1Label );
    	  pane.add( num1TextField );
  	  pane.add( num2Label );
  	  pane.add( num2TextField );
    	  pane.add( num3Label );
    	  pane.add( num3TextField );
    	  pane.add( num4Label );
    	  pane.add( num4TextField );
    	  pane.add( num5Label );
    	  pane.add( num5TextField );
  	  pane.add( maxB );
     	  pane.add( minB );
     	  pane.add( blankLabel );
     	  pane.add( avgB );
     	  pane.add( resultLabel );
     	  pane.add( resultTextField );

      centerFrame( WIDTH, HEIGHT ); // center frame on screen
    } // end method

    public void centerFrame( int frameWidth, int frameHeight )
    {
       // create Toolkit object
       Toolkit aToolkit = Toolkit.getDefaultToolkit();

       // create Dimension object with user info
       Dimension screen = aToolkit.getScreenSize();

       // assign x, y position
       int xUpperLeftCorner = ( screen.width - frameWidth ) / 2;
       int yUpperLeftCorner = ( screen.height - frameHeight ) / 2;

       // method to position frame
       setBounds(xUpperLeftCorner, yUpperLeftCorner, frameWidth, frameHeight);

   } // end method

private class MaxButtonHandler implements ActionListener
   {
      public void actionPerformed( ActionEvent e )
      {
         String num1Str   = num1TextField.getText();
         String num2Str   = num2TextField.getText();
         String num3Str   = num3TextField.getText();
         String num4Str   = num4TextField.getText();
         String num5Str   = num5TextField.getText();
         double num1      = Double.parseDouble( num1Str );
         double num2      = Double.parseDouble( num2Str );
         double num3      = Double.parseDouble( num3Str );
         double num4      = Double.parseDouble( num4Str );
         double num5      = Double.parseDouble( num5Str );
         double result    = Math.max(num1, Math.max(num2, Math.max(num3, Math.max(num4, num5)))); 
         String resultStr = Double.toString( result );
         resultTextField.setText( resultStr );
      }
   } // end class

private class MinButtonHandler implements ActionListener
   {
      public void actionPerformed( ActionEvent e )
      {
         String num1Str   = num1TextField.getText();
         String num2Str   = num2TextField.getText();
         String num3Str   = num3TextField.getText();
         String num4Str   = num4TextField.getText();
         String num5Str   = num5TextField.getText();
         double num1      = Double.parseDouble( num1Str );
         double num2      = Double.parseDouble( num2Str );
         double num3      = Double.parseDouble( num3Str );
         double num4      = Double.parseDouble( num4Str );
         double num5      = Double.parseDouble( num5Str );
         double result    = Math.min(num1, Math.min(num2, Math.min(num3, Math.min(num4, num5)))); 
         String resultStr = Double.toString( result );
         resultTextField.setText( resultStr );
      }
   } // end class

private class AvgButtonHandler implements ActionListener
   {
      public void actionPerformed( ActionEvent e )
      {
         String num1Str   = num1TextField.getText();
         String num2Str   = num2TextField.getText();
         String num3Str   = num3TextField.getText();
         String num4Str   = num4TextField.getText();
         String num5Str   = num5TextField.getText();
         double num1      = Double.parseDouble( num1Str );
         double num2      = Double.parseDouble( num2Str );
         double num3      = Double.parseDouble( num3Str );
         double num4      = Double.parseDouble( num4Str );
         double num5      = Double.parseDouble( num5Str );
         double result    = (num1 + num2 + num3 + num4 + num5)/5;
         String resultStr = Double.toString( result );
         resultTextField.setText( resultStr );
      }
   } // end class

   public static void main( String[] args )  // main method
   {
      JFrame aMaxMinAvgGUI = new MaxMinAvgGUI();  // create the frame object
      aMaxMinAvgGUI.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
      aMaxMinAvgGUI.setVisible( true );               // display the frame
   } // end main

} // end class

[jhuber151]

If I understand the question you would like "Result" to change to "The Maximum is:..."You can add a couple statements into your methods (AvgButtonHandler,MinButtonHandler,MaxButtonHandle r) that state what you want the label to say. ie...

 String num1Str   = num1TextField.getText();
         String num2Str   = num2TextField.getText();
         String num3Str   = num3TextField.getText();
         String num4Str   = num4TextField.getText();
         String num5Str   = num5TextField.getText();
         double num1      = Double.parseDouble( num1Str );
         double num2      = Double.parseDouble( num2Str );
         double num3      = Double.parseDouble( num3Str );
         double num4      = Double.parseDouble( num4Str );
         double num5      = Double.parseDouble( num5Str );
         double result    = Math.max(num1, Math.max(num2, Math.max(num3, Math.max(num4, num5))));
         resultLabel.setText("The Maximum is: ");// <--CHANGES THE RESULT LABEL ON BUTTON CLICK
         String resultStr = Double.toString( result );
         resultTextField.setText( resultStr );

This will change the result label to what you would like it to say on the event of clicking the button.

[cselic]

@Yokomoko: You application is very good.

In actionPerformed methods inside MaxButtonHandler, MinButtonHandler and AvgButtonHandler private classes you should add this line of code:

resultLabel.setText(" /* your string instead of string Result goes here */ ");

@jhuber151: Thanks for great reply. You were faster than me ;-)

[Yokomoko]

Wow thank you guys. I knew I could do something in the method but I wasn't sure on what code to use. Thanks a ton guys!!!

[Yokomoko]

I have changed the coding but it is not updating the text. I am at a loss as to what to do

[Yokomoko]

Nevermind I fixed it. Thanks again!

[cselic]

^You could maybe for the practice put another button in empty cell in your application that clear all values of text fields.