Using Java pack() method
问题 I can't make the pack() method work. I tried several things. My code looks like this at the moment: Class 1: public static void main( String[] args ) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { JavaGui mygui = new JavaGui(); // mygui.setSize(1154, 753); mygui.setVisible(true); mygui.pack(); Class 2: public class JavaGui extends javax.swing.JFrame { public JavaGui() { getContentPane().setLayout(null); .. getContentPane().add(panelLeft); ... getContentPane().add