Demonstrate Some Calendar Calculations
From Java Example Source Code
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[edit] Overview - Demonstrate Some Calendar Calculations
This Java example shows some calendar calculations.
[edit] Java Source Code
- Package: com.darwinsys
- File: CalCalcs.java
package com.darwinsys; /* * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002. * All rights reserved. Software written by Ian F. Darwin and others. * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $ * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's, * pioneering role in inventing and promulgating (and standardizing) the Java * language and environment is gratefully acknowledged. * * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for * inventing predecessor languages C and C++ is also gratefully acknowledged. */ import java.util.Calendar; /** * Show some calendar calculations. * * @author Ian F. Darwin, http://www.darwinsys.com/ * @version $Id: CalCalcs.java,v 1.3 2004/02/09 03:33:45 ian Exp $ */ public class CalCalcs { public static void main(String[] argv) { // + Calendar c = Calendar.getInstance(); System.out.println("I got a " + c.getClass()); c.set(1951, 03, 24, 12, 30, 0); System.out.println("I set it to " + c.getTime().toString()); System.out.println("I actually set the year to " + c.get(Calendar.YEAR)); System.out.println("In milliseconds, that's " + c.getTime().getTime()); System.out.println("Or, in seconds, " + c.getTime().getTime() / 1000); // - } }
[edit] What Result You Can Get
Run the program, you will get:
I got a class java.util.GregorianCalendar I set it to Tue Apr 24 12:30:00 CST 1951 I actually set the year to 1951 In milliseconds, that's -589836599387 Or, in seconds, -589836599
[edit] Required External Library for this Java Example
Need nothing.
[edit] How to Run this Java Example Program
We recommend running this Java example program with Eclipse.
For assistance in working with Eclipse, please see How to Run Java Program with Eclipse.
It's fairly easy.
[edit] Question & Answer
Any question?
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