java GUI編程(swing)之三swing單選框複選框組件

swing複選框（JCheckBox） 單選框(JRadioButton)

 

特別說明：同一組單選按鈕，必須先建立一個ButtonGroup，而後把單選按鈕放到ButtonGroup

中

 

package gui;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JLabel;

import javax.swing.JCheckBox;

import javax.swing.JRadioButton;

import javax.swing.ButtonGroup;

import java.awt.GridLayout;

/**

* 單選框，複選框

* Created by admin on 2017/7/6.

*/

public class MySelect extends JFrame{

// 在此定義好須要用的組件

private JButton jButton, jButton2;

private JPanel jPanel, jPanel2, jPanel3;

private JLabel jLabel, jLabel2;

private JCheckBox jCheckBox1, jCheckBox2, jCheckBox3;

private ButtonGroup buttonGroup;

private JRadioButton jRadioButton, jRadioButton2,jRadioButton3, jRadioButton4;

public static void main(String[] args){

MySelect mySelect = new MySelect();

}

// 構造方法

public MySelect(){

// 面板

jPanel = new JPanel();

jPanel2 = new JPanel();

jPanel3 =new JPanel();

// 按鈕

jButton = new JButton("肯定");

jButton2 = new JButton("取消");

// 標籤

jLabel = new JLabel("請選擇");

jLabel2 = new JLabel("環境");

// 複選

jCheckBox1 = new JCheckBox("Python");

jCheckBox2 = new JCheckBox("Java");

jCheckBox3 = new JCheckBox("Python");

// 單選

jRadioButton = new JRadioButton("Linux");

jRadioButton2 = new JRadioButton("Unix");

jRadioButton3 = new JRadioButton("Windows");

jRadioButton4 = new JRadioButton("Mac OS");

// 單選框Group

buttonGroup = new ButtonGroup();

buttonGroup.add(jRadioButton);

buttonGroup.add(jRadioButton2);

buttonGroup.add(jRadioButton3);

buttonGroup.add(jRadioButton4);

 

jPanel.add(jLabel);

jLabel.add(jCheckBox1);

jPanel.add(jCheckBox2);

jPanel.add(jCheckBox3);

jPanel2.add(jLabel2);

jPanel2.add(jRadioButton);

jPanel2.add(jRadioButton2);

jPanel2.add(jRadioButton3);

jPanel2.add(jRadioButton4);

 

jPanel3.add(jButton);

jPanel3.add(jButton2);

 

this.setLayout(new GridLayout(3, 1));

this.add(jPanel);

this.add(jPanel2);

this.add(jPanel3);

//設置JFrame屬性

this.setTitle("工程");

this.setLocation(500, 250);

this.setSize(350, 200);

this.setResizable(false);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setVisible(true);

}

}