Java--正则表达式及应用

来源：互联网发布：vip软件编辑：程序博客网时间：2024/05/17 22:01
首次尝试用java编写图形界面；还有很多不熟悉的地方;
希望理解透这第一份；
import javax.swing.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;/** * Created by yehao on 15-3-6. */public class RegexStringText extends JFrame{    private  JTextField phoneTextField,zipTextField,addressTextField,                firstTextField, lastTextField, chineseTextField;    private Font songTi = new Font("宋体",Font.PLAIN,12);    public RegexStringText() {        super("基于字符串的正则表达式");        //创建图形界面        JLabel phoneLabel = new JLabel("电话");        phoneLabel.setFont(songTi);        JLabel zipLabel = new JLabel("邮政编码");        zipLabel.setFont(songTi);        JLabel addressLabel = new JLabel("通信地址");        addressLabel.setFont(songTi);        JLabel firstLabel = new JLabel("First Name: (英文,第一个字母必须大写)");        firstLabel.setFont(songTi);        JLabel lastLabel = new JLabel("Last Name : (英文,第一个字母要必须大写");        lastLabel.setFont(songTi);        JLabel chineseLabel = new JLabel("中文");        chineseLabel.setFont(songTi);        JButton okButton = new JButton("验证");        okButton.setFont(songTi);        okButton.addActionListener(new ActionListener() {            @Override            public void actionPerformed(ActionEvent e) {                vaildataData();            }        });        phoneTextField = new JTextField(15);        zipTextField = new JTextField(6);        addressTextField = new JTextField(35);        firstTextField = new JTextField(20);        lastTextField = new JTextField(20);        chineseTextField = new JTextField(30);        JPanel firstName = new JPanel();        firstName.add(firstLabel);        firstName.add(firstTextField);        JPanel lastName = new JPanel();        lastName.add(lastLabel);        lastName.add(lastTextField);        JPanel address = new JPanel();        address.add(addressLabel);        address.add(addressTextField);        JPanel zipAndPhone = new JPanel();        zipAndPhone.add(zipLabel);        zipAndPhone.add(zipTextField);        zipAndPhone.add(phoneLabel);        zipAndPhone.add(phoneTextField);        JPanel chinese = new JPanel();        chinese.add(chineseLabel);        chinese.add(chineseTextField);        JPanel ok = new JPanel();        ok.add(okButton);        //把GUI部件添加到容器中        Container container = getContentPane();        container.setLayout(new GridLayout(6,1));        container.add(firstName);        container.add(lastName);        container.add(address);        container.add(zipAndPhone);        container.add(chinese);        container.add(ok);        pack();        setVisible(true);    } //RegexStringText 构造器结束    public static void main(String[] arge) {        RegexStringText application = new RegexStringText();        application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);    }    private void vaildataData() {        if(lastTextField.getText().equals("") || firstTextField.getText().equals("")                || addressTextField.getText().equals("") ||zipTextField.getText().equals("")                || phoneTextField.getText().equals("") || phoneTextField.getText().equals("")                || chineseTextField.getText().equals("")) {            JOptionPane.showMessageDialog(this, "所有栏都要填");        }        else if(!firstTextField.getText().matches("[A-Z][a-zA-Z]*")) {            //[A-Z]表示匹配一个大写字母[a-zA-Z]*表示匹配多个字母＊表示多个            JOptionPane.showMessageDialog(this, "First Name非法，首字母大写");        }        else if(!lastTextField.getText().matches("[A-Z][a-zA-Z]*")) {            JOptionPane.showMessageDialog(this, "Last Name非法，首字母大写");        }        else if(!zipTextField.getText().matches("\\d{5}")) {            //输入为５个数字            JOptionPane.showMessageDialog(this, "邮政编码非法");        }        else if(!phoneTextField.getText().matches("[1-9]\\d{2}-[1-9]\\d{2}-\\d{4}")) {            //[１－９]\\d{2}表示匹配三个数字，但第一个不为０；这个格式为123-123-1111            JOptionPane.showMessageDialog(this, "电话号码非法");        }        else if(!chineseTextField.getText().matches("[\u4E00-\u9FA5]")) {            //Unicode编码中处于4E00-9FA5中间的字符（即中文）            JOptionPane.showMessageDialog(this, "只能输入中文");        }        else            JOptionPane.showMessageDialog(this, "输入合法");    }}
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