3.27作业

public class User {

private String name;
private String password;
private static int count;
public User() {}
public User (String name) {
this.name = name ;
}
public User(String name , String password) {
count++;
this.name = name;
this.password = password;
}
public void print() {System.out.println("用户名："+name+"\t"+"密码:"+password);

}
public void count() {
System.out.println("用户个数："+count);

}
public static void main(String[] args) {
User User1 =new User("大思文","666");
User1.print();
User User2 =new User("思文","555");
User2.print();
User User3 =new User("小思文","444");
User3.print();
new User().count();

}
}