Erro Ao Compilar!

[Guest brunoss]

Não consigo entender o porquê que está dando esse erro!!!

Por favor me ajudem!

java.lang.NoClassDefFoundError: P4/Aula_27-05-04/N1 (wrong name: N1)

at java.lang.ClassLoader.defineClass0(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:537)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)

at java.net.URLClassLoader.access$100(URLClassLoader.java:55)

at java.net.URLClassLoader$1.run(URLClassLoader.java:194)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:187)

at java.lang.ClassLoader.loadClass(ClassLoader.java:289)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)

at java.lang.ClassLoader.loadClass(ClassLoader.java:235)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)

Exception in thread "main"

segue o código:

public class N1 extends java.applet.Applet {

/** Initializes the applet N1 */

public void init() {

initComponents();

}

/** This method is called from within the init() method to

* initialize the form.

* WARNING: Do NOT modify this code. The content of this method is

* always regenerated by the Form Editor.

*/

private void initComponents() {

textField1 = new java.awt.TextField();

panel1 = new java.awt.Panel();

button1 = new java.awt.Button();

button2 = new java.awt.Button();

button3 = new java.awt.Button();

button4 = new java.awt.Button();

button5 = new java.awt.Button();

button6 = new java.awt.Button();

button7 = new java.awt.Button();

button8 = new java.awt.Button();

button9 = new java.awt.Button();

button10 = new java.awt.Button();

button11 = new java.awt.Button();

button12 = new java.awt.Button();

button13 = new java.awt.Button();

button14 = new java.awt.Button();

button15 = new java.awt.Button();

setLayout(new java.awt.BorderLayout());

textField1.setText("textField1");

textField1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

textField1ActionPerformed(evt);

}

});

add(textField1, java.awt.BorderLayout.NORTH);

panel1.setLayout(new java.awt.GridLayout(5, 3));

button1.setLabel("1");

button1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

button1ActionPerformed(evt);

}

});

panel1.add(button1);

button2.setLabel("2");

button2.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

button2ActionPerformed(evt);

}

});

panel1.add(button2);

button3.setLabel("3");

panel1.add(button3);

button4.setLabel("4");

panel1.add(button4);

button5.setLabel("5");

panel1.add(button5);

button6.setLabel("6");

panel1.add(button6);

button7.setLabel("7");

panel1.add(button7);

button8.setLabel("8");

panel1.add(button8);

button9.setLabel("9");

panel1.add(button9);

button10.setLabel("0");

panel1.add(button10);

button11.setLabel("+");

panel1.add(button11);

button12.setLabel("-");

panel1.add(button12);

button13.setLabel("/");

panel1.add(button13);

button14.setLabel("*");

panel1.add(button14);

button15.setLabel("=");

panel1.add(button15);

add(panel1, java.awt.BorderLayout.CENTER);

}

private void button2ActionPerformed(java.awt.event.ActionEvent evt) {

// Add your handling code here:

if (textField1.getText()=="")

textField1.setText("2");

else

textField1.setText(textField1.getText() + 2);

}

private void button1ActionPerformed(java.awt.event.ActionEvent evt) {

// Add your handling code here:

if (textField1.getText()=="")

textField1.setText("1");

else

textField1.setText(textField1.getText() + 1);

}

private void textField1ActionPerformed(java.awt.event.ActionEvent evt) {

// Add your handling code here:

}

// Variables declaration - do not modify

private java.awt.Button button1;

private java.awt.Button button10;

private java.awt.Button button11;

private java.awt.Button button12;

private java.awt.Button button13;

private java.awt.Button button14;

private java.awt.Button button15;

private java.awt.Button button2;

private java.awt.Button button3;

private java.awt.Button button4;

private java.awt.Button button5;

private java.awt.Button button6;

private java.awt.Button button7;

private java.awt.Button button8;

private java.awt.Button button9;

private java.awt.Panel panel1;

private java.awt.TextField textField1;

// End of variables declaration

}

[Kabelera]

hehe apostoque foi o Jbuider, ou NetBeans qe gerou esse código ae.....

você fez os imports no começõ do programa??? você digitou o nome certo do arquivo.java?? você criou a variável de ambiente para copilar??