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極簡版學生管理系統

package javaBasic;

import java.text.SimpleDateFormat;
import java.util.*;

public class StudentCard {
	public static void main(String[] args) {
		StuCard sc = new StuCard("20191677","Moliy",'g',100,2018,11,21);
		sc.printInfo();
		System.out.println();
		sc.consume(8);
		sc.printInfo();
		System.out.println();
		sc.save(50);
		sc.printInfo();
	}
}

class StuCard{
	private String id;
	private String name;
	private char sex;
	private double money;
	private Date consumeDate;
	private GregorianCalendar gc;//表示日期
	
	StuCard(String id,String name,char sex,double money,int year,int month,int day){
		this.id = id;
		this.name = name;
		this.sex = sex;
		this.money = money;
		gc = new GregorianCalendar(year,month,day);
		consumeDate = gc.getTime();
	}
	
	public String getId() {
		return id;
	}
	
	public String getName() {
		return name;
	}
	
	public char getSex() {
		return sex;
	}
	
	public double getMoney() {
		return money;
	}
	
	public Date getConsumeDate() {
		return consumeDate;
	}
	
	public String getStringofConsumeDate() {
		return  new SimpleDateFormat("yyyy-MM-dd").format(consumeDate).toString();
	}
	
	public void consume(double m) {
		money = money - m;
		System.out.println("consume "+m);
	}
	
	public void save(double m) {
		money = money + m;
		System.out.println("save "+m);
	}
	
	public void printInfo() {
		System.out.println("id:"+getId()+"\nname:"+getName()+"\nsex:"+getSex()+"\nmoney:"+getMoney()+"\ngetIdDay:"+getStringofConsumeDate());
	}
}