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/*
Demo for: Custom-Made Classes
Driver.class */
package wu.andy;
import javax.swing.JOptionPane;
import java.util.GregorianCalendar;
public class Driver
{
public static void main(String[] args)
{
// ***** Test for calcNewDate() *****
boolean forward = true;
String forwardStr = "";
// Ask user to enter a start date
String start = JOptionPane.showInputDialog(null,
"Start Date is (in mm/dd/yyyy format):",
"calcNewDate() Test",
JOptionPane.QUESTION_MESSAGE);
// Ask whether it is for calculating a future or a past date
// The default is set as Yes (hence the [Y] part in the prompt)
String direction = JOptionPane.showInputDialog(null,
"Looking for a future date? (Y/N) [Y]",
"calcNewDate() Test",
JOptionPane.QUESTION_MESSAGE);
// Based on user's answer, adjust the prompt for the next dialog box,
// and if not for forward calculation (default), change that.
// The user will be searching for a past date only when he/she
// specifically type in "N" or "No" (case-insensitive). If the user
// enters anything else, or simply presses Enter without entering
// anyting at all, the search is always forward. This behavior is in
// agreement with Yes being the default.
if ( direction.equalsIgnoreCase("N") ||
direction.equalsIgnoreCase("No") )
{
forward = false;
forwardStr = "How many days ago in the past?";
}
else
{
forwardStr = "How many days ahead in the future?";
}
// Ask user for the interval between the start date and the target date
E:/BCIS 3680/10e-customclasses/Driver.java
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89 }
String intervalStr = JOptionPane.showInputDialog(null,
forwardStr,
"calcNewDate() Test",
JOptionPane.QUESTION_MESSAGE);
int interval = Integer.parseInt(intervalStr);
// Call calcNewDate() in DateAssistant class
String target = DateAssistant.calcNewDate(start, interval, forward);
// Display the result
JOptionPane.showMessageDialog(null,
"The date you're looking for is : " + target + ".",
"calcNewDate() test",
JOptionPane.INFORMATION_MESSAGE);
// **** Test for formatDate() - TimeZone Version *****
// Create a GregorianCalendar object for the current time
GregorianCalendar gc = new GregorianCalendar();
// Ask user for the time zone
// The default is Central, as indicated by the [Central] part at the
// end of the prompt. If the user doesn't enter any of the other five
// zone names in correct spelling (but case doesn't matter), or enters
// anything else, the time zone remains Central (also see source code
// in DateAssistant.class).
String timeZone = JOptionPane.showInputDialog(null,
"Please specify a time zone (Hawaii, Alaska, Pacific,\n" +
"Mountain, Central, Eastern) [Central]",
"formatDate() Test",
JOptionPane.QUESTION_MESSAGE);
// Call formatDate() in DateAssisant, passing time zoen string as the
// second argument
String nowString = DateAssistant.formatDate(gc, timeZone);
// Display the result
JOptionPane.showMessageDialog(null,
"The current time is " + nowString + ".",
"formatDate() Test",
JOptionPane.INFORMATION_MESSAGE);
}
E:/BCIS 3680/10e-customclasses/Driver.java