java coding in netbeans

Question

The following code written in netbeans it shows error as cannot find length() method and invert if.im new to netbeans. please correct my code.thanks in advance.

 private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
       if(jTextField1.getText().trim().length() == 0 && jPasswordField1.getPassword().length() == 0)

Answer 1

getPassword() returns char[] so use .length field

jPasswordField1.getPassword().length

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Also See

• Why is char[] preferred over String for passwords?

Answer 2

Try

jPasswordField1.getPassword().length

getPassword() returns char[]. See docs.