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The string pool is a group of string literals placed in the heap memory area. Many string variables with the same string literal or content can refer to the same string object from the string pool. By ...

Why string is an immutable class in java ?before going for the above question we should be clear what are immutable classes ? immutable classes are the one which once created, then its instances can ...

I prefer that all of my Java classes provide for immutable objects unless there is a compelling need for them to be mutable. I’m not the only one who feels this way.

Immutable class is a class which once created, its contents can not be changed. Immutable objects are the objects whose state can not be changed once constructed. e.g. String class Since the state of ...

You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java. Many programming languages allow ...