usermanage.java

学生管理系统,界面布局的示例。主要包含四个类。

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package studentmanagement;

import java.util.ArrayList;

/**
 *
 * @author DJ尐舞
 */
public class UserManage {

    public class User {

        String userName;
        String userPassword;

        public User(String userName, String userPassword) {
            this.userName = userName;
            this.userPassword = userPassword;
        }
    }
    ArrayList users = new ArrayList();

    public void add(String userName, String userPassword) {
        users.add(new User(userName, userPassword));
    }
    private User searchUser(String userName){
           for (int i = 0; i < users.size(); i++) {
            if (((User) (users.get(i))).userName.equals(userName)) {
                return ((User) (users.get(i)));
            }
        }
        return null;
    }
    
    public boolean isRightUser(String userName, String userPassword) {
        User su=searchUser(userName);
        if(su==null)return false;
        else if (su.userPassword.equals(userPassword)) {
            return true;
        }
        return false;
    }
}