What is an immutable object?
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Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?
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Sample code to retrieve objects from HashMap in sorted ascending order?
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explain me with a code snippet about the generation and handling of null point exceptions.
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Is it correct to say that due to garbage collection feature in java, a java program never goes out of memory?
What is file class and what is its purpose?
how to print hello world every second till i have pressed enter key ???
What is a parameter in a function?
Explain java heap space and garbage collection?