在Java netbeans中init（）; 用的方法，目的是什么？

Question

I have started work on JFrame in Netbeans. Actually, I do not have knowledge that Why this init() Function/Method is use in JFrame ? What is the purpose of it? Please Explain me about it.

Thanks,

Answer 1

Assuming you're using the Netbeans GUI Builder tool, I think the method you are referring to is the initComponents(); method call that you see in your constructor.

public class NewJFrame extends javax.swing.JFrame {
    public NewJFrame() {
        initComponents();
    }
}

If you look below the constructor you will see

If you look closely, you will see a + next to line 31. You can expand that code region by pressing the + . When you do, you will see the auto-generated initComponents() method that is called in your constructor.

If you look through the method, you will see that's where all of your components are initialized, and the laying out of the components is done.