Java_if else

import java.util.Scanner;
public class Look{
public static void main(String[] agrs){
    String id = "",pwd = "",id2 ="admin",pwd2="343ds...";
    int a,b,c,max;
    Scanner input = new Scanner(System.in);
    while(true){
    System.out.print("请输入您的账号:");
    id = input.next();
    if(id.equals(id2)){
        System.out.print("请输入您的密码:");
        pwd=input.next();
        if(pwd.equals(pwd2)){
        System.out.println("登录成功!");
            System.out.println("请您输入第1个数:");
            a=input.nextInt();
            System.out.println("请您输入第2个数:");
            b=input.nextInt();
            System.out.println("请您输入第3个数:");
            c=input.nextInt();
            if(a>b){
                      max=a;
                       }else{
                       max=b;
                              }
            if(max>b){
                     max=max;
                        }else{
                        max=c;
                                }
                System.out.println("最大值为:"+max);
        }else{
        System.out.println("密码输入错误!");
        }




    }else{
        System.out.println("您输入的账号错误!请重新输入!");

        }


}



}
}