Java类和对象使用（用户账户信息）

 

 

package user;
import java.util.*;

public class User {
private String kouling;
private String u;
private static int num;
Scanner sc=new Scanner(System.in);
User(){
System.out.println("请输入用户名：");
u=sc.next();
System.out.println("请输入用户密码口令：");
kouling=sc.next();
num++;
}
User(String yong){
u=yong;
num++;
}
public void setU() {
System.out.println("设置用户名：");
u=sc.next();

}
public void setKouling() {
System.out.println("设置口令：");
kouling = sc.next();

}
public String getU()
{
return u;
}
public String getKouling() {
return kouling;
}
public static int getNum() {
return num;
}
public static void main(String[] args) {
// TODO 自动生成的方法存根
User u1=new User("用户1");
u1.setKouling();

User u2=new User();

System.out.println(u1.getU()+'\t'+u1.getKouling()
+'\n'+u2.getU()+'\t'+u2.getKouling());
System.out.println("总用户数："+u1.getNum());
}

}