java之 ------ 圖形介面（三）

標籤：圖形介面   java   

import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.TitledBorder;public class UserJFrame extends JFrame implements ActionListener {    private int number=1;                                  //編號    private JTextField text_number, text_name;             //編號、姓名文本行    private JRadioButton radiob_male, radiob_female;       //性別按鈕    private Object cities[][];                             //儲存多省的城市    private JComboBox combox_province, combox_city;        //省份、城市組合框    private JButton button_add;                            //添加按鈕    private JTextArea text_user;                           //文本區       public UserJFrame(Object provinces[], Object cities[][])//參數指定省份和城市數組    {        super("輸入使用者資訊");        this.setSize(740, 300);        this.setLocationRelativeTo(null);        this.setDefaultCloseOperation(EXIT_ON_CLOSE);        JPanel rightpanel=new JPanel(new GridLayout(6,1));//右面板        JPanel leftpanel=new JPanel(new BorderLayout());//左面板        leftpanel.setBorder(new TitledBorder("Person"));        JSplitPane split=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,rightpanel,leftpanel);//水平分隔窗格，左右各添加一個面板        split.setDividerLocation(140);//設定水平分隔條的位置        split.setEnabled(false);//設定分隔條不能變動        this.getContentPane().add(split);//架構內容窗格添加分隔窗格        text_user = new JTextArea();        text_user.setEditable(false);        leftpanel.add(text_user);        leftpanel.add(new JScrollPane(text_user));//設定文本編輯域可以滾動                text_number = new JTextField("1");                 //編號文本行        text_number.setEditable(false);                    //不可編輯，編號自動產生        rightpanel.add(text_number);        text_name = new JTextField("姓名");        rightpanel.add(text_name);        JPanel panel_rb=new JPanel(new GridLayout(1,2));   //選項按鈕子面板，網格布局，1行2列        rightpanel.add(panel_rb);        ButtonGroup bgroup = new ButtonGroup();            //按鈕組        radiob_male = new JRadioButton("男",true);         //建立選項按鈕，預設選中        bgroup.add(radiob_male);                           //選項按鈕添加到按鈕組        panel_rb.add(radiob_male);                         //選項按鈕添加到子面板        radiob_female = new JRadioButton("女");        bgroup.add(radiob_female);        panel_rb.add(radiob_female);        this.cities = cities;        combox_province = new JComboBox(provinces);        //省份組合框        combox_province.setEditable(false);                 //設定組合框可編輯         combox_province.addActionListener(this);        rightpanel.add(combox_province);        combox_city = new JComboBox(cities[0]);            //城市組合框        rightpanel.add(combox_city);                button_add = new JButton("添加");        button_add.addActionListener(this);        rightpanel.add(button_add);        this.setVisible(true);    }    public void actionPerformed(ActionEvent e)             //單擊事件處理方法    {        if (e.getSource()==combox_province)                //在組合框的下拉式清單中選擇資料項目時        {            int i=combox_province.getSelectedIndex();      //省份組合框當前選中項序號            combox_city.removeAllItems();                  //清除地區組合框中原所有內容            for (int j=0; j<this.cities[i].length; j++)                combox_city.addItem(this.cities[i][j]);    //地區組合框添加資料項目        }            if (e.getSource() == button_add)                   //單擊按鈕        {            String aline=number+", "+text_name.getText();            if (radiob_male.isSelected())                  //指定選項按鈕選中時                aline += ", "+radiob_male.getText();       //獲得選項按鈕表示的性別字串             if (radiob_female.isSelected())                aline += ", "+radiob_female.getText();            aline += ", "+combox_province.getSelectedItem(); //獲得組合框選中項的字串            aline += ", "+combox_city.getSelectedItem();            text_user.append(aline+"\n");                  //文本區添加一行字串            this.number++;                                 //編號自動加1            text_number.setText(""+this.number);            text_name.setText("姓名");        }    }        public static void main(String arg[])    {        Object provinces[]={"江蘇省", "浙江省"};        Object cities[][]={{"南京市","蘇州市","無錫市"}, {"杭州市","寧波市","溫州市"}};        new UserJFrame(provinces, cities);    }}        

java之 ------ 圖形介面（三）