Comment positionner et dimensionner JLabels en Java?

Question

Je veux pouvoir positionner mes deux JLabels mais quand je change les valeurs dans les lignes de position, cela ne fait rien. Aussi quand je l'exécute seulement la deuxième étiquette est montrée.

Mon code:

import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.SwingConstants; 

public class cubeTimerClass { 

    public static void main(String[] args) { 
     window(); //Runs the window method 
    } 

    public static void window() { 
     //Create a window 
       JFrame window = new JFrame(); //Create the window object 
       window.setSize(900, 600); //Set the size of the window 
       window.setTitle("Cube Timer"); //Set the title of the window 
       window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Tells the program to quit when user closes the window 
       window.setVisible(true); //Make the window visible 

       //Create a label 
       JLabel label1 = new JLabel(""); //Create the label1 object 
       label1.setText("Message 1"); //Set the text for label1 
       label1.setAlignmentX(0); 
       label1.setAlignmentY(0); 
       window.add(label1); //Place the label on the window 

       //Create a label 
       JLabel label2 = new JLabel(""); //Create the label2 object 
       label2.setText("Message 2"); //Set the text for label2 
       label2.setAlignmentX(0); 
       label2.setAlignmentY(50); 
       window.add(label2); //Place the label on the window 
    } 
} 

Answer 1

Vérifiez ce point -

JFrame frame = new JFrame(); 
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

    JPanel panel = (JPanel) frame.getContentPane(); 
    panel.setLayout(null); 

    JLabel label = new JLabel("Java"); 
    panel.add(label); 
    Dimension size = label.getPreferredSize(); 
    label.setBounds(90, 100, size.width, size.height); 

    frame.setSize(300, 200); 
    frame.setVisible(true);