十二章上机 练习4

package ed.com;import java.util.Scanner;public class detgvd {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubScanner input =new Scanner (System.in);def i=new def();boolean con=true;i.show();int c=input.nextInt();switch(c){case 1:System.out.println("请输入用户名:");String name=input.next();System.out.println("请输入密码:");String pwd=input.next();if(name.equals("jin")&&pwd.equals("0000")){System.out.println("@@登陆成功,"+i.name+"@@");}else {System.out.println("@@您没有权限进入系统,请重新登录@@");}break;case 2:System.out.println("谢谢您的使用!");con=false;break;}while(con);}}

package ed.com;public class def {String name="jin";String  pwd="0000";public String show(){return "管理员信息用户名为:"+name+"\t密码:"+pwd;}}