12、验证电话号码的真伪

运行效果图：

主窗体

package com.lzw;

import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField ;
import javax.swing.border.EmptyBorder;

public class CheckPhoneNum  extends JFrame {
	private JPanel contentPane;
	private JTextField nameField;
	private JTextField phoneNumField;
	private JTextField ageField ; 
	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		//、保证线程安全
		EventQueue.invokeLater(new Runnable() {
			public void  run() {
				try {
					CheckPhoneNum frame = new CheckPhoneNum();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace ();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public  CheckPhoneNum() {
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 260, 190);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane) ;
		contentPane.setLayout(null);
		setTitle("鉴别非法电话号码");

		JLabel lblip = new JLabel("姓名：");
		lblip.setBounds(10, 15, 122, 15);
		contentPane.add(lblip);

		nameField = new JTextField();
		nameField.setBounds(80, 10, 141, 25);
		contentPane.add(nameField);

		JButton button = new JButton("查询");
		//、查询按钮要进行真伪查询，需要先获取电话号码信息，添加监听器
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				do_button_actionPerformed(e);
			}
		});
		button.setBounds(90, 119, 93, 23);
		contentPane.add(button);

		JLabel label = new JLabel("电话号码：");
		label.setBounds(10, 87, 60, 15);
		contentPane.add(label);

		phoneNumField = new JTextField();
		phoneNumField.setBounds(80, 82, 141, 25);
		contentPane.add(phoneNumField);

		JLabel label_1 = new JLabel("年龄：");
		label_1.setBounds(10, 50, 122, 15);
		contentPane.add(label_1);

		ageField = new JTextField();
		ageField.setBounds(80, 45, 141, 25);
		contentPane.add(ageField);
	}

	//、编写监听按钮的实现方法
	protected void do_button_actionPerformed(ActionEvent e) {
		String text = phoneNumField.getText();// 获取用户输入
		String info = check(text);// 对输入文本进行IP验证
		//、第一个参数为null的是弹出对话框在屏幕中央显示，第二个参数为弹出的信息
		JOptionPane.showMessageDialog(null, info);// 用对话框输出验证结果
	}

	public String check(String text){
		//、判断的条件是文本框不能为空
		if(text == null || text.isEmpty()){
			return "请输入电话号码！";
		}
		// 、定义正则表达式
		//String regex = "^\\d{3}-?\\d{8}|\\d{4}-?\\d{8}$";
		//、根据实际电话号码规则进行规则编写
		String regex = "^1[3|4|5|7|8][0-9]\\d{8}$|^0\\d{6}";
		// 、判断输入数据是否为电话号码
		if(text.matches(regex)){
			return text + "\n是一个合法的电话号码！";
		}else{
			return text + "\n不是一个合法的电话号码！";
		}
	}
}