关注赞赏支持网易云课堂Java语言程序设计进阶第二周编程题Clock类的代码：
public class Clock {
Display hour=new Display(24);Display minute=new Display(60);Display second=new Display(60);public Clock(int a, int b, int c){hour.setvalue(a);minute.setvalue(b);second.setvalue(c);}public void tick{second.increase;if(second.getvalue==0){minute.increase;if(minute.getvalue==0){hour.increase;}}}public String toString{return String.format(“%02d:%02d:%02d\n”,hour.getvalue,minute.getvalue,second.getvalue);}Display类部分的代码：public class Display {
