java第六次课后作业

class Check{
    public boolean validate(String name,
            String password){
        if(name.equals("shenhaochen")
                &&password.equals("mldn")){
            return true;
        }else{
            return false;
        }
    }
}
class Operate{
    private String info[];
    public Operate(String info[]){
        this.info=info;
    }
    public String login(){
        Check check=new Check();
        this.isExit();
        String name=this.info[0];
        String password=this.info[1];
        String str=null;
        if(check.validate(name,password)){
            str="欢迎"+name+"光临！";
        }else{
            str="错误的用户名和密码！";
        }
        return str;
    }
    public void isExit(){
        if(this.info.length!=2){
            System.out.println("输入的参数不正确，系统退出！");
            System.out.println("格式：java LoginDemo02 用户名 密码");
            System.exit(1);
        }
    }
}
public class Demo02 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
       Operate oper=new Operate(args);
       System.out.println(oper.login());
    }

}