Java類的封裝示例

package jufe.chap07.section1;

/**
 * 
 * @author admin
 * @date 2020-5-1
 * description:類的封裝示例
 */
public class Student {
	private int id;  //編號，編號的定義爲int型，可用於順序的編碼，表示第幾個創建的
	private String sid;  //學號
	private String name;  //姓名
	private int brithDate;   //出生日期
	private double average;  //平均分
	private static int count;  //類的對象數
	
	
	//構造代碼塊
	{
		count++;
		id = count;  //初始化id編號爲當前的對象數
	}
	
	public  Student(){
		
	}
	
	public Student(int id){
		this.id  = id;
	}

	public Student(String sid, String name) {
		super();
		this.sid = sid;
		this.name = name;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getSid() {
		return sid;
	}

	public void setSid(String sid) {
		this.sid = sid;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Date getBrithDate() {
		return brithDate;
	}

	public void setBrithDate(Date brithDate) {
		this.brithDate = brithDate;
	}

	public double getAverage() {
		return average;
	}

	public void setAverage(double average) {
		this.average = average;
	}

	public static int getCount() {
		return count;
	}

	public static void setCount(int count) {
		Student.count = count;
	}

	@Override
	public String toString() {
		return "Student [id=" + id + ", sid=" + sid + ", name=" + name
				+ ", average=" + average + "]";
	}
	
	//業務方法。。。
	

}