Java Other Important Questions

This page contains the most common and practicle Java interview questinos with answers. For more questions on various topics of core java navigate thorough the links privided in below table.

Overview : Most Imp Questions Java Basic Interview Questions
OOPS Concepts Interview Questions Exception Handling Questions
MultiThreading & Concurrency API Java API : String, File I/O
Collection Framework Questions Advanced Questions

Generics in Java is like templates in C++.
In java you don't have explicit methods to deallocate memory. So unused objects are cleared from automatically by garbage collector.
A class whose objects can't be modified is called immutable class.
Searilization is the process of writing the state of an object to some external device (like File).
In searilization you can't control the object that you are saving, Externalization gives you that option by readExternal() and writeExternal() methods.
In java memory is divided in Heap memory and stack memory.
Heap memory is then further divided into Young Generation and Old Generation (Tenured and PermGen).
Class loader is the component of JVM that is responsible for loading class definition.
In java memory is divided in Heap memory and stack memory.
Heap memory is then further divided into Young Generation and Old Generation (Tenured and PermGen).



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