package lesson5;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class JButtonDemo01 extends JFrame {
public JButtonDemo01() throws HeadlessException {
Container container=this.getContentPane();
//将一个图片变为一个图标
URL resource = JButtonDemo01.class.getResource("luna.jpg");
ImageIcon icon;
icon = new ImageIcon(resource);
//把这个图标放在按钮上
JButton button = new JButton();
button.setIcon(icon);
button.setToolTipText("图片按钮");
//add
container.add(button);
this.setVisible(true);
this.setSize(500,300);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JButtonDemo01();
}
}
package lesson5;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class JButtonDemo02 extends JFrame {
public JButtonDemo02() throws HeadlessException {
Container container=this.getContentPane();
//将一个图片变为一个图标
// URL resource = JButtonDemo01.class.getResource("luna.jpg");
// ImageIcon icon;
//icon = new ImageIcon(resource);
//单选框
JRadioButton radioButton01 = new JRadioButton("JRadioButton01");
JRadioButton radioButton02 = new JRadioButton("JRadioButton02");
JRadioButton radioButton03 = new JRadioButton("JRadioButton03");
//由于单选框只能选择一个,分组
ButtonGroup group = new ButtonGroup();
group.add(radioButton01);
group.add(radioButton02);
group.add(radioButton03);
container.add(radioButton01,BorderLayout.CENTER);
container.add(radioButton02,BorderLayout.SOUTH);
container.add(radioButton03,BorderLayout.NORTH);
this.setVisible(true);
this.setSize(500,300);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JButtonDemo02();
}
}
package lesson5;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class JButtonDemo03 extends JFrame {
public JButtonDemo03() throws HeadlessException {
Container container=this.getContentPane();
//多选框
JCheckBox checkBox01 = new JCheckBox("checkBox01");
JCheckBox checkBox02 = new JCheckBox("checkBox02");
JCheckBox checkBox03 = new JCheckBox("checkBox03");
container.add(checkBox01,BorderLayout.NORTH);
container.add(checkBox02,BorderLayout.SOUTH);
this.setVisible(true);
this.setSize(500,300);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JButtonDemo03();
}
}