Most asked 15 java threading interview questions asked in Investment banks

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f you are going for java interview on any Investment bank expect lots of muti-threading interview questions on your way. Multi-threading is...

Auto boxing and Unboxing core concept in Java

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Auto boxing in Java Auto boxing and un-boxing is introduced in Java 1.5 to automatically convert primitive type into boxed primitive( Objec...
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Importance of Enum Singleton in Java

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Enum Singletons are new way to implement Singleton pattern in Java by using Enum with just one instance. Though Singleton pattern in Java e...
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Java Tutorial : Convert byte array to string in java & string to byte array

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The following tutorial tells about how to convert a String to byte array and byte array to String with suitable examples. Byte array may be...

SubQuery Tutorial with example in SQL – Correlated vs Noncorrelated

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SubQuery in SQL is a query inside another query. Some time to get a particular information from database you may need to fire two separate ...

Memory-mapped files in java tutorial with example . File I/O vs Memory-Mapped Files tutorial

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The following tutorial covers about what is memory mapped files and  what are the advantages and drawbacks of using Memory-Mapped Files and ...

Apache ofbiz tutorial : how to change ofbiz's administrator login password

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To change administrator login password apply below step : If you are the OFBiz administrator and you forget this user's password, you ...