classes.java

来自「学生成绩处理GUI界面,Java初学者可参考学习」· Java 代码 · 共 97 行

package studentscore;

import java.io.Serializable;
import java.util.*;

/**
 *
 * 班级类
 * grade    年级
 * subject  专业
 * className    班级
 * number   人数
 * stu      学生列表
 */
public class Classes  implements Serializable{

    private String grade;
    private String subject;
    private String className;
    private int number;
    private ArrayList<Student> stu;

    /**构造方法     */

    public Classes(String grade, String subject, String className){
        setGrade(grade);
        setClassName(className);
        setSubject(subject);
        number = 0;
        stu = new ArrayList<Student>();
    }
    public Classes(){
        this("Default Grade", "Default Subject", "Default Class");
    }
    public Classes(Classes c){
        this(c.getGrade(), c.getSubject(), c.getClassName());
    }

    /** setter & getter */
    public String getGrade(){
        return grade;
    }
    public String getClassName(){
        return className;
    }
    public String getSubject(){
        return subject;
    }
    public ArrayList getStudentList(){
        return stu;
    }
    public int getNumber(){
        return number;
    }

    public void setGrade(String grade){
        this.grade = grade;
    }
    public void setClassName(String className){
        this.className = className;
    }
    public void setSubject(String subject){
        this.subject = subject;
    }
    public void setStudentList(ArrayList stu){
        this.stu = stu;
    }
    public  void addNumber(){
        number++;
    }
    public  void removeNumber(){
        number--;
    }
    public void addStudent(Student stu){
        this.getStudentList().add(stu);
        addNumber();
    }
    public void removeStudent(Student stu){
        this.getStudentList().remove(stu);
        removeNumber();
    }

    @Override
    public String toString(){
        return this.getGrade() +  this.getSubject() + this.getClassName();
    }

    public boolean equels(Classes c){
        if(this.getClassName().equals(c.getClassName()) && this.getGrade().equals(c.getGrade()) && this.getSubject().endsWith(c.getSubject()))
            return true;
        else
            return false;
    }

}