swing Layout management Grid layout
Example
The GridLayout allows you to arrange components in the form of a grid.
You pass the number of rows and columns you want the grid to have to the GridLayout's constructor, for example new GridLayout(3, 2) will create a GridLayout with 3 rows and 2 columns.
When adding components to a container with the GridLayout, the components will be added row by row, from left to right:
import javax.swing.*;
import java.awt.GridLayout;
public class Example {
public static void main(String[] args){
SwingUtilities.invokeLater(Example::createAndShowJFrame);
}
private static void createAndShowJFrame(){
JFrame jFrame = new JFrame("Grid Layout Example");
// Create layout and add buttons to show restraints
JPanel jPanel = new JPanel(new GridLayout(2, 2));
jPanel.add(new JButton("x=0, y=0"));
jPanel.add(new JButton("x=1, y=0"));
jPanel.add(new JButton("x=0, y=1"));
jPanel.add(new JButton("x=1, y-1"));
jFrame.setContentPane(jPanel);
jFrame.pack();
jFrame.setLocationRelativeTo(null);
jFrame.setVisible(true);
}
}
This creates and shows a JFrame that looks like:
A more detailed description is available: GridLayout
