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876天前package day01; |
import javax.swing.ButtonGroup; |
import javax.swing.JCheckBox; |
import javax.swing.JComboBox; |
import javax.swing.JFrame; |
import javax.swing.JPanel; |
import javax.swing.JRadioButton; |
public class TestSelectDemo { |
public static void main(String[] args) { |
// TODO Auto-generated method stub |
JFrame frame = new TestSelectFrame(); |
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); |
frame.setVisible(true); |
} |
} |
class TestSelectFrame extends JFrame { |
public TestSelectFrame(){ |
setTitle("测试单选按钮、复选框和下拉列表"); |
setSize(400,100); |
TestSelectPanel tsp =new TestSelectPanel(); |
add(tsp); |
} |
} |
class TestSelectPanel extends JPanel{ |
public TestSelectPanel(){ |
JCheckBox jcb1 = new JCheckBox("Java"); |
JCheckBox jcb2 = new JCheckBox("#"); |
JCheckBox jcb3 = new JCheckBox("C++"); |
add(jcb1); |
add(jcb2); |
add(jcb3); |
|
ButtonGroup group = new ButtonGroup(); |
JRadioButton b1= new JRadioButton("男"); |
JRadioButton b2= new JRadioButton("女"); |
group.add(b1); |
group.add(b2); |
add(b1); |
add(b2); |
JComboBox jcb = new JComboBox(); |
jcb.addItem("计算机"); |
jcb.addItem("医学"); |
jcb.addItem("英语"); |
add(jcb); |
} |
} |
