撥號器界面灰常簡單，一個文本框和一個Jpanel面板，面板里是5*3的網格布局，就不詳細敘述了，代碼如下

import java.awt.BorderLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener;import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; /*** * @author lc* **/ public class CallLayout extends JFrame{public static void main(String[] args) {CallLayout callLayout = new CallLayout();callLayout.setTitle("撥號器");}//定義字符串數組，為按鈕顯示文本賦值String str[] = {"1","2","3","4","5","6","7","8","9","*","0","#","撥號","掛斷","嘻嘻"};JTextField textField;String flag="";public CallLayout() {setDefaultCloseOperation(EXIT_ON_CLOSE);//設置可以點擊x號退出JPanel panel = new JPanel();//設置面板panel.setLayout(new GridLayout(5, 3));//面板里里面設置5*3的網格布局setLayout(new BorderLayout());//設置邊界布局 是最下面的一層，上一層是面板和文本框for(int i=0;i<15;i++){JButton btn = new JButton(str[i]);btn.addActionListener(new BtnClick());panel.add(btn);}textField = new JTextField(); //定義文本框getContentPane().add(textField, BorderLayout.NORTH);//將文本框放置在窗體的上方getContentPane().add(panel, BorderLayout.CENTER);//將面板放在center位置setSize(320,320);//設置窗體大小setLocationRelativeTo(null);//窗體居中顯示 setResizable(false);setVisible(true);}class BtnClick implements ActionListener{@Overridepublic void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubJButton btn=(JButton)e.getSource();if (btn.getText().equals("嘻嘻")) {if (textField.getText().length()>0) {if ( flag.equals("撥號") || flag.equals("掛斷")) {textField.setText("");}else {textField.setText(textField.getText().substring(0,textField.getText().length()-1));}}}else if (btn.getText().equals("撥號")) {textField.setText("撥號成功");}else if (btn.getText().equals("掛斷")) {textField.setText("已掛斷");}else {if ( flag.equals("撥號") || flag.equals("掛斷")) {textField.setText(btn.getText());}else {textField.setText(textField.getText()+btn.getText());}}flag=btn.getText();}} }

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