userlist.java

来自「简单的议程管理的小实验,包含可运行BAT文件和TEST用例」· Java 代码 · 共 50 行

package agenda.data;
import agenda.Exception.*;
import java.util.*;

/**
 * User List class
 * @author wc
 */
public class UserList extends ArrayList<User>{
    /**
     * Check if the username is already exist
     * @param uN UserName
     * @throws agenda.Exception.UserExistException
     */
    public void isUserExist(String uN) throws UserExistException
    {
        for(User u:this)
            if(u.userName.equals(uN))
                throw new UserExistException(uN);
    }
    
    /**
     * Check the username and password
     * @param uN UserName
     * @param pw Password
     * @throws agenda.Exception.InvalidIDorPasswordException
     */
    public void checkUser(String uN, String pw) throws InvalidIDorPasswordException
    {
        boolean flag = false;
        for(User u:this)
            if(u.userName.equals(uN)&&u.password.equals(pw))
                flag = true;
        if(!flag) throw new InvalidIDorPasswordException();
    }
    
    /**
     * Check the username
     * @param uN UserName
     * @throws agenda.Exception.InvalidIDorPasswordException
     */
    public void checkUser(String uN) throws InvalidIDorPasswordException
    {
        boolean flag = false;
        for(User u : this)
            if(u.userName.equals(uN))
                flag = true;
        if(!flag) throw new InvalidIDorPasswordException();
    }
}