Java Basics Hardening the 97:calendar class to get the number of days of February in any year of the case

1. Analysis:

(1) Keyboard entry for any year

(2) Set the date of the Calendar object

Year: That is (1) the data entered

Month: Yes 2 (March)

Day: Yes 1

(3) Push the time forward one day, the last day of February

(4) Output this day

2. code example:

1  Packagecn.itcast_03;2 3 ImportJava.util.Calendar;4 ImportJava.util.Scanner;5 6 /*7 * Get how many days in February of any year8  * 9 * Analysis:Ten * A: Keyboard entry for any year One * B: Set Calendar object's Month day A * Year is the data of a input - * Month is 2 - * Day is 1 the * C: Push the time forward one day, the last day of February - * D: Get this day's output -  */ -  Public classCalendartest { +      Public Static voidMain (string[] args) { -         //Keyboard entry for any year +Scanner sc =NewScanner (system.in); ASystem.out.println ("Please enter the year:"); at         intYear =sc.nextint (); -  -         //set Calendar object's Month day -Calendar C =calendar.getinstance (); -C.set (year, 2, 1);//This is actually the March 1 of the year. -         //Push the time forward one day, the last day of February inC.add (Calendar.date, 1); -  to         //get this day's output + System.out.println (C.get (calendar.date)); -     } the}

The results are as follows:

Java Basics Hardening the 97:calendar class to get the number of days of February in any year of the case