Hi, I am new in JAVA programming. Can anybody explain to me , how can I catch a change of Boolen expression and then make a action. I need to alter a Boolean expression (it's public) from different point's of program, and after any change start some other code.
Your question is a bit vague. What do you mean by "catch a change of a boolean expression"? Can you show us some code to explain in more detail what exactly you want to do and what you don't understand?
You can use if ... else statements to execute statements depending on if a boolean expression evaluates to true or false.
Well Might be I didn't get the question. But if you need to track a Boolean variable in Whole Application, then it would be better to run a parallel thread to check whether the value of boolean variable has been changed or not.
I am sorry if I mislead the thread. But I suggested what I thought about.
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Joined: Sep 13, 2006
thank's for helping. I done it with parallel thread.
Originally posted by Ankur Sharma: Well Might be I didn't get the question. But if you need to track a Boolean variable in Whole Application, then it would be better to run a parallel thread to check whether the value of boolean variable has been changed or not.
Better than what?
I think typically the best solution would be to encapsulate the boolean in an observable object - an object that fires a change event every time the value changes.
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