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Vineet Mangal

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Top Stories by Vineet Mangal

Wikipedia defines Time as: "Time is a measure in which events can be ordered from the past through the present into the future, and also the measure of durations of events and the intervals between them.Time is often referred to as the fourth dimension, along with the three spatial dimensions." Since Time is a natural concept, in an ideal world, dealing with it should be simple, but unfortunately it is not the case and we humans made it more complex by introducing different time zones and day light saving. As a programmer, we want that programming languages immune us from these complexity and being a Java programmer, we have similar expectations from Java. Java tried to overcome these complexities in its first two editions of Date and Time API, but failed measurably. A simple google will give you numerous posts criticizing Java for this. Few years back, I was introduced... (more)

Runtime.addShutdownHook()

Preface: Every Java Program can attach a shutdown hook to JVM, i.e. piece of instructions that JVM should execute before going down. Problem: A program may require to execute some pieces of instructions when application goes down. An application may go down because of several reasons: Because all of its threads have completed execution Because of call to System.exit() Because user hit CNTRL-C System level shutdown or User Log-Off Few scenarios where this requirement fits are: Saving application state, e.g. when you exits from most of the IDEs, they remember the last view Closing some... (more)

Exploring Java 7 : Try-with-resources

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Singleton Pattern: Am I implementing it Correctly? - Part II

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Singleton Pattern: Am I implementing it Correctly? - Part I

Singleton Pattern: Am I implementing it Correctly? - Part I ... (more)