一、代码如下
public void login() {
String acatualUsername= "woniuxy";
String acatualPassword= "123456";
//Scanner sc= new Scanner(System.in);
//System.out.println("请输入用户名:");
//String name= sc.nextLine();
//System.out.println("请输入用密码:");
//String password= sc.nextLine();
while(true) {
Scanner sc= new Scanner(System.in);
System.out.println("请输入用户名:");
String name= sc.nextLine();
if(!name.equals(acatualUsername)) {
System.out.println("用户名输入错误!");
}else {
while(true) {
System.out.println("请输入用密码:");
String password= sc.nextLine();
if(!password.equals(acatualPassword)) {
System.out.println("密码输入错误");
}else{
System.out.println("恭喜,登录成功");
break;
}
}
}
}
}