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|Interview Questions and Answers|
|Ans. Garbage collection mechanism frees up the memory that is no longer needed. In languages like C / C++ the deallocation needs to be done explicitly by the programmer and hence any leniency may result in memory leak. Garbage collection in java ensures that all unused memory is reclaimed and hence there are no memory leaks.Moreover it relieves the programmer from the hassle of carefully releasing all memory.|
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|Why Char array is preferred over String for storing password?|
|Does garbage collection guarantee that a program will not run out of memory?|
|Describe, in general, how java's garbage collector works ?|
|Let's suppose we have an to destroy objects, Design a program to implement garbage collection ?|
|Should we override finalize method ?|
|What are strong, soft, weak and phantom references in Java ?|
|Can we call the garbage collector explicitly ?|
|What does String intern() method do?|
|Which type of memory is cleaned / recovered by garbage collection - stack or heap ?|
|Java doesn't provide exclusive access to memory like C/C++ and other lower level languages ? What are the advantanges and disadvantages ?|