How to run JFrame maximized in JAVA?

Question

I'm new to JAVA.

I need to run a JFrame named MainFrame in maximized mode.

How can I do it?

public class MainFrame extends javax.swing.JFrame {

/**
 * Creates new form MainFrame
 */
public MainFrame() {
    initComponents();
}

Answer 1

You should use JFrame.setExtendedState:

public MainFrame() {
    initComponents();
    setExtendedState(java.awt.Frame.MAXIMIZED_BOTH);
}