登陸驗證Demo

來源:互聯網
上載者:User

     登入驗證,當使用者名稱為abc,密碼為123時返回通過,否則為登入失敗,若只輸入了其中一項,則返回參數不正確。

代碼如下:

   

//登入驗證範例 ——一個標準的程式設計模式

class Login

{    

       private String name;

       private String password;

       public Login(String name,String password)

       {

              this.name=name;

              this.password=password;

              voildate();

       }

       private void voildate()

       {    

              if(name.equals("abc")&&password.equals("123"))

              {

                     System.out.println("登入成功");

              }

              else

              {

                     System.out.println("登入失敗");

              }

       }

};

class Controll

{    

      

       private String args[];

       public Controll(String args[])   //接受參數

       {

              this.args=args;

              info();

       }    

       private void info()

       {    

              if(args.length!=2)

              {    

                     System.out.println("輸入的參數不正確");

                     System.exit(1);

              }

              new Login(this.args[0],this.args[1]);  //傳遞參數到驗證類

       }

      

};

public class JavaDemo15

{

       public static void main(String args[])

       {    

             

              new Controll(args);      

       }

};

 

 運行結果:

 

                                                                      

 

 

 

                                                                      

 

 

 

                                                                                                                                

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