userdaofromarray.java

java编写的控制台用户注册登陆小程序.

package day08.user_management;

public class UserDaoFromArray implements UserDao{
	private User[] data;
	private int count;
	
	public UserDaoFromArray(){
		data=new User[10];
		count=0;
	}

	public boolean addUser(User user) {
		if(count==data.length){
			return false;
		}
		for(int i=0;i<count;i++){
			if(data[i].getUserName().equals(user.getUserName())){
				return false;
			}
		}
		data[count++]=user;
		return true;
	}

	public User getUser(String name, String passwd) {
		for(int i=0;i<count;i++){
			if(data[i].getUserName().equals(name) && data[i].getPassword().equals(passwd)){
				return data[i];
			}
		}
		return null;
	}

}