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POJava help comparing Calendar objects
 

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    <p>I have developed a Calendar widget in Java (for BlackBerry development, specifically). A user can view all of the days in a current month, as well as move forward/backward in months/years.</p> <p>When I draw my calendar (in a table format), I want to change the color of any days that are X days in advance of the current date. I can currently check for this ONLY if the calendar shown on the screen is the same month as the current month:</p> <pre><code> if (calendarMonth == currentMonth) { for (int i = 1; i &lt;= (NUM_DAYS_IN_MONTH); i++) { if (i &gt; currentDay + Constants.CALENDAR_DAYS_IN_ADVANCE) { System.out.println("VALID: " + i); } } } </code></pre> <p>But I am having trouble coding a solution for when the calendar shown is a different month from the current month. For example, today is January 26th, so the January calendar will show all of the January days as a grey color. When the user changes the month to February, then the following days should be grey:</p> <pre><code>Constants.CALENDAR_DAYS_IN_ADVANCE = 14; 1/26/2011 - 2/9/2011 </code></pre> <p>Any days past that range will be a black color. So basically, I am looking to write a function that will accept two java.util.Calendar objects (the active calendar shown and a calendar for the current date), and the function will return an array of dates in the range of CURRENT DATE - CALENDAR_DAYS_IN_ADVANCE.</p> <p>I also need to keep in mind the following:</p> <p>1) I cannot compare dates with the java.util.Calendar.add() or java.util.Calendar.subtract() functions, as java for BlackBerry is limited</p> <p>2) This has to work across years, too, for example December 2010 - January 2011</p> <p>Can anybody help with the logic?</p> <p>Thanks!</p>
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    1. COAdded backberry tag
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    2. COwhen setting the month why have you done monthOfYear-1 ?
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