grid layout panels in a jframe
How would i be able to use gridlayout and panels to create a frame that resembles a checkered board pattern? it would seem that i can't create two panels with two diferent colors within the one for-loop.
import javax.swing.*;
import java.awt.*;
@SuppressWarnings("serial")
public class test extends JFrame {
public test() {
this.setSize(400, 400);
JPanel content = new JPanel(new GridLayout(4,4));
for(int i = 0; i < 8; i++) {
JPanel panel = new JPanel();
panel.setBackground(Color.RED);
开发者_如何学Ccontent.add(panel);
JPanel panel2 = new JPanel();
panel.setBackground(Color.BLUE);
content.add(panel2);
}
// for(int i = 0; i < 8; i++) {
// JPanel panel = new JPanel();
// panel.setBackground(Color.BLUE);
// content.add(panel);
// }
this.add(content);
}
public static void main(String[] args) {
test app = new test();
app.setVisible(true);
app.setResizable(false);
app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
@SuppressWarnings("serial")
static class Test extends JFrame {
public Test() {
this.setSize(400, 400);
int size = 8;
JPanel content = new JPanel(new GridLayout(size,size));
for (int i = 0; i < size*size; ++i) {
JPanel panel = new JPanel();
panel.setBackground( i % 2 == i/size % 2 ? Color.RED : Color.BLUE);
content.add(panel);
}
this.add(content);
}
}
You can work directly on indices, you have to switch between colors every cell and starting for a different color for every row.
Typo (note the 2 in panel2):
panel2.setBackground(Color.BLUE);
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