- Parameters needed to used a
Grid Layout manager:
- M = Number of rows in the grid
- N = Number of columns in the grid
- How to use a
Grid Layout manager:
- Use add(Component) to
add a component to the
container (JPanel)
- The Grid Layout manager
creates a
MxN grid
and
places components / containers (JPanel)
one at a time
into the grid
- The components / containers
are
inserted in to the grid
as follows:
- starts at the top row of the grid;
- goes from left to right
( The Grid Layout manager is great for making key pads :-))
- Use add(Component) to
add a component to the
container (JPanel)
- Example: Grid Layout in a JPanel:
import java.awt.*; import javax.swing.*; public class Layout5 { public static void main(String[] args) { JFrame f = new JFrame("GridLayout"); JPanel MyPanel = new JPanel(); MyPanel.setLayout( new GridLayout(4, 3) ); // 4x3 Grid JButton x1 = new JButton("7"); JButton x2 = new JButton("8"); JButton x3 = new JButton("9"); JButton x4 = new JButton("4"); JButton x5 = new JButton("5"); JButton x6 = new JButton("6"); JButton x7 = new JButton("1"); JButton x8 = new JButton("2"); JButton x9 = new JButton("3"); JButton x10 = new JButton("0"); JButton x11 = new JButton("."); JButton x12 = new JButton("CE"); MyPanel.add(x1); MyPanel.add(x2); MyPanel.add(x3); MyPanel.add(x4); MyPanel.add(x5); MyPanel.add(x6); MyPanel.add(x7); MyPanel.add(x8); MyPanel.add(x9); MyPanel.add(x10); MyPanel.add(x11); MyPanel.add(x12); f.getContentPane().add(MyPanel, "Center"); // Paste MyPanel into JFrame f.setSize(300, 300); f.setVisible(true); } }Result:
- Example Program:
(Demo above code)
- Prog file: click here