The IDE does´t write the IMPORT syntax in a UI

Hello, whenever I design a user interface in the Netbeans IDE it doesn´t write the IMPORT syntax of the classes i´m using like:

    import javax.swing.*;

     public class NewJPanel extends JPanel
     {
     .....
     ....
     ....

instead of that syntax my IDE puts:

    public class NewJPanel extends javax.swing.JPanel {
    ....
    ....
    ......

or whenever I declare a swing component the syntax looks like this:
 
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton10;

instead of writing:

    import javax.swing.*;
 
    private JButton jButton1;
    private JButton jButton10;

i´d like to know why is this happening and what can i do to solve this. I want my ide to write the IMPORT syntax and not to write the packages or classes every time are used.

thanks