02 打印一年中各月的天数
package demo3; public class GetDay { public static void main(String[] args) { // TODO Auto-generated method stub int[] day = {31,28,31,30,31,30,31,31,30,31,30,31}; for (int i =0;i<12; i++) { System.out.println((i +1)+"月有" +day[i]+"天"); } } }