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ColorCheck.java
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86 lines (62 loc) · 2.33 KB
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package GUI;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
public class ColorCheck extends JFrame {
private JPanel jPanel;
private JLabel jLabel;
private JCheckBox jCheckBox1;
private JCheckBox jCheckBox2;
public ColorCheck() {
setTitle("color check");
setSize(300,100);
setDefaultCloseOperation(EXIT_ON_CLOSE);
build();
add(jPanel);
setVisible(true);
}
public void build(){
jLabel = new JLabel("Select the check box to change colors.");
jCheckBox1 = new JCheckBox("yellow background");
jCheckBox2 = new JCheckBox("red foreground");
jCheckBox1.addItemListener(new item());
jCheckBox2.addItemListener(new item());
jPanel = new JPanel();
jPanel.add(jLabel);
jPanel.add(jCheckBox1);
jPanel.add(jCheckBox2);
jPanel.setBorder(BorderFactory.createTitledBorder("color choice"));
}
private class item implements ItemListener{
public void itemStateChanged(ItemEvent e){
if(e.getSource() == jCheckBox1){
if(jCheckBox1.isSelected()) {
jPanel.setBackground(Color.yellow);
jCheckBox1.setBackground(Color.yellow);
jCheckBox2.setBackground(Color.yellow);
jPanel.setBorder(BorderFactory.createEmptyBorder(20,20,20,20));
}else {
jPanel.setBackground(Color.LIGHT_GRAY);
jCheckBox1.setBackground(Color.lightGray);
jCheckBox2.setBackground(Color.lightGray);
jPanel.setBorder(BorderFactory.createLineBorder(Color.RED,2));
}
}
else if(e.getSource() == jCheckBox2) {
if(jCheckBox2.isSelected()) {
jLabel.setForeground(Color.red);
jCheckBox1.setForeground(Color.RED);
jCheckBox2.setForeground(Color.RED);
}else{
jLabel.setForeground(Color.BLACK);
jCheckBox1.setForeground(Color.BLACK);
jCheckBox2.setForeground(Color.BLACK);
}
}
}
}
public static void main(String[] args) {
new ColorCheck();
}
}