Thread: JButton preforming an action

I have the JButtons already made and placed and i made a command for it but when i click still nothing happens.

heres my command method

	public void actionPreformed(ActionEvent evt) {
		String cmd = evt.getActionCommand();
		if (cmd != null) {
			if (cmd.equalsIgnoreCase("algButton")) {
	            getInput.userInput();
	        }
		}
	}

here's my entire GUI class

package Algebra;
 
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
import Algebra.getInput;
 
public class GUI{
 
	//Create Frame
	private JFrame f = new JFrame("Joshs' Algebra Calculator");
 
	//Create Panels
	private JPanel funcPnl = new JPanel();
	private JTextField txtNotes = new JTextField();
 
	//Buttons
	private JButton algButton = new JButton("Equations");
	private JButton areaButton = new JButton("Area");
 
 
	//Create Menu
	private JMenuBar mb = new JMenuBar();
	private JMenu muFile = new JMenu("File");
	private JMenuItem muItemQuite = new JMenuItem("Quit");
	private JMenu muHelp = new JMenu("Help");
	private JMenuItem muItemAbout = new JMenuItem("About");
 
	public GUI(){		
		//set menu
		f.setJMenuBar(mb);
 
		//build menu
		muFile.add(muItemQuite);
		muHelp.add(muItemAbout);
		mb.add(muFile);
		mb.add(muHelp);	
 
		//Add Buttons
		funcPnl.add(algButton);
		funcPnl.add(areaButton);
 
		//Set Up Frame
		f.setIconImage(Toolkit.getDefaultToolkit()
				  .getImage("icon_confused.gif"));
		f.setSize(400,400);
		f.getContentPane().setLayout(new BorderLayout());
		f.getContentPane().add(funcPnl, BorderLayout.WEST);
		f.getContentPane().add(txtNotes, BorderLayout.SOUTH);
 
 
		// Allows the Swing App to be closed
        f.addWindowListener(new ListenCloseWdw());
 
		//Add Menu listener
        muItemQuite.addActionListener(new ListenMenuQuit());
 
        //Buttons
    	algButton.setActionCommand("algButton");
	}
 
    public void actionPreformed(ActionEvent evt) {
		String cmd = evt.getActionCommand();
		if (cmd != null) {
			if (cmd.equalsIgnoreCase("algButton")) {
	            getInput.userInput();
	        }
		}
	}
 
    public class ListenMenuQuit implements ActionListener{
        public void actionPerformed(ActionEvent e){
            System.exit(0);         
        }
    }
 
    public class ListenCloseWdw extends WindowAdapter{
        public void windowClosing(WindowEvent e){
            System.exit(0);         
        }
    }
 
    public void launchFrame(){
        // Display Frame
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
 
 
 
    public static void main(String args[]){
        GUI gui = new GUI();
        gui.launchFrame();
        //gui.Action(ActionEvent);
        //getInput.userInput();
    }
}

I know its not complete but i just don't know were to go from here.

Where do you add an action listener to the button? That is the connection needed for the button to be able to call your code. When it gets an ActionEvent, it calls the action listeners that have been added to it.

i just tried that and i got 2 errors

package Algebra;
 
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
import Algebra.getInput;
 
public class GUI{
	//Create Frame
	private JFrame f = new JFrame("Joshs' Algebra Calculator");
 
	//Create Panels
	private JPanel funcPnl = new JPanel();
	private JTextField txtNotes = new JTextField();
 
	//Buttons
	private JButton algButton = new JButton("Equations");
	private JButton areaButton = new JButton("Area");
 
 
	//Create Menu
	private JMenuBar mb = new JMenuBar();
	private JMenu muFile = new JMenu("File");
	private JMenuItem muItemQuite = new JMenuItem("Quit");
	private JMenu muHelp = new JMenu("Help");
	private JMenuItem muItemAbout = new JMenuItem("About");
 
	public GUI(){		
		//set menu
		f.setJMenuBar(mb);
 
		//build menu
		muFile.add(muItemQuite);
		muHelp.add(muItemAbout);
		mb.add(muFile);
		mb.add(muHelp);	
 
		//Add Buttons
		funcPnl.add(algButton);
		funcPnl.add(areaButton);
 
		//Set Up Frame
		f.setIconImage(Toolkit.getDefaultToolkit()
				  .getImage("icon_confused.gif"));
		f.setSize(400,400);
		f.getContentPane().setLayout(new BorderLayout());
		f.getContentPane().add(funcPnl, BorderLayout.WEST);
		f.getContentPane().add(txtNotes, BorderLayout.SOUTH);
 
 
		// Allows the Swing App to be closed
        f.addWindowListener(new ListenCloseWdw());
 
		//Add Menu listener
        muItemQuite.addActionListener(new ListenMenuQuit());
        algButton.addActionListener(new actionPreformed(evt));
        //Buttons
    	algButton.setActionCommand("Algebra");
	}
 
	public void actionPreformed(ActionEvent evt) {
		String cmd = evt.getActionCommand();
		if (cmd != null) {
			if (cmd.equalsIgnoreCase("Algebra")) {
	            getInput.userInput();
	        }
		}
	}
 
    public class ListenMenuQuit implements ActionListener{
        public void actionPerformed(ActionEvent e){
            System.exit(0);         
        }
    }
 
    public class ListenCloseWdw extends WindowAdapter{
        public void windowClosing(WindowEvent e){
            System.exit(0);         
        }
    }
 
    public void launchFrame(){
        // Display Frame
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
 
 
 
    public static void main(String args[]){
        GUI gui = new GUI();
        gui.launchFrame();
        //gui.Action(ActionEvent);
        //getInput.userInput();
    }
}

error 1

Severity and Description	Path	Resource	Location	Creation Time	Id
actionPreformed cannot be resolved to a type	AlgebraCalculator/src/Algebra	GUI.java	line 57	1306982074386	276

error 2

Severity and Description	Path	Resource	Location	Creation Time	Id
evt cannot be resolved	AlgebraCalculator/src/Algebra	GUI.java	line 57	1306982074386	277