I have several programs that give me the same error.

Exception in thread "main" java.lang.NoClassDefFoundError: clicker

How do I solve this is it a problem with the way I set it up or with the
program.

textarea.java

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;

public class textarea extends Applet implements ActionListener {

        TextArea textarea1;
        Button button1;

        public void init(){
                textarea1 = new TextArea(" ", 5, 20);
                add(textarea1);
                button1 = new Button("Clicker Here");
                add(button1);
                button1.addActionListener(this);
        }

        public void actionPerformed (ActionEvent event){
                String msg = "Welcome to Java";
                if(event.getSource() == button1){
                        textarea1.insert(msg, 0);
                }
        }
}


clickers.java

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;

public class clickers extends Applet implements ActionListener{

TextField text1, text2;
Button button1, button2;

        public void init(){
                text1 =new TextField(20);
                add(text1);
                button1 = new Button ("Click Here!");
                add (button1);
                button1.addActionListener(this);


                button2 = new Button ("Welcome to Java");
                add(button2);
                button2.addActionListener(this);
        }

        public void actionPerformed(ActionEvent event){
                String msg = new String ("Welcome to Java");
                if( event.getSource() == button1){
                        text1.setText("hello");
                        }
                if( event.getSource() == button2){
                        text2.setText("what");

                }
        }
}
~
~~
~~~
*******************************************************************************

Joseph Kimo Kreis
Web Developer for MS&E Department
Terman Engineering Center
Stanford University
Stanford, CA 94305-4026
mailto:[EMAIL PROTECTED]

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