student.java

基础性的JAVA源代码

package exec.day1016;

import java.util.HashSet;

public class Student {
	private String number;//学生编号
	private String name;//学生姓名
	private String major;//学生专业
	private HashSet selectedCourses;//选修的课程
	public Student(String number, String name, String major) {
		super();
		this.number = number;
		this.name = name;
		this.major = major;
		selectedCourses = new HashSet();
	}
	public String toString(){
		return number+":"+name+":"+major+":"+selectedCourses;
	}
	/**
	 * 添加课程
	 * @param c
	 */
	public void addCourse(Course c){
		selectedCourses.add(c);
	}
	public String getMajor() {
		return major;
	}
	public void setMajor(String major) {
		this.major = major;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getNumber() {
		return number;
	}
	public void setNumber(String number) {
		this.number = number;
	}
	public HashSet getSelectedCourses() {
		return selectedCourses;
	}
	public void setSelectedCourses(HashSet selectedCourses) {
		this.selectedCourses = selectedCourses;
	}
	@Override
	public int hashCode(){
		return number.hashCode();
	}
	@Override
	public boolean equals(Object obj){
		if(obj.getClass()!=Student.class){
			return false;
		}
		Student c = (Student)obj;
		if(c.number.equals(this.number)){
			return true;
		}
		return false;
	}
}