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  • 密码

    package cs;

    import java.io.BufferedReader;
    import java.io.File;
    import java.io.FileReader;
    import java.io.IOException;
    import java.util.StringTokenizer;

    import javax.swing.JOptionPane;
    import javax.swing.JPasswordField;

    public class Mima{
    private static String ID1;
    private static Integer mima1;
    private static Integer sanci;

    public static void main(String[] args)
    {
    sanci=0;
    denglu();
    while(sanci!=3){
    denglu();
    }
    }
    public static void denglu(){
    readFile();
    int b=123;
    String ID;
    ID = JOptionPane.showInputDialog( "请输入账号:");
    JPasswordField a=new JPasswordField();
    Object[]message={"请输入密码:",a};
    a.setEchoChar('*');
    JOptionPane.showConfirmDialog(null,message,"登录",JOptionPane.OK_CANCEL_OPTION,JOptionPane.QUESTION_MESSAGE);
    int mima = Integer.valueOf(String.valueOf(a.getPassword()));
    if(mima==mima1||ID.equals(ID1))
    {
    System.out.println("账号密码输入正确");
    System.out.println(ID+" "+mima);
    sanci=3;
    }
    else
    {System.out.println("账号密码输入错误");
    sanci++;
    }
    }
    public static void readFile() {
    File file = new File("ID.txt");
    BufferedReader reader = null;
    try {
    reader = new BufferedReader(new FileReader(file));
    String s = reader.readLine();
    StringTokenizer t = new StringTokenizer(s, "|");
    ID1 = t.nextToken();
    mima1 = Integer.valueOf(t.nextToken());
    reader.close();
    } catch (IOException e) {
    e.printStackTrace();
    }

    }
    }

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  • 原文地址:https://www.cnblogs.com/muxiaozhou/p/6198103.html
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