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Technical interview questions and answers.
What is Horizontal Scaling?
When Clones of an application server are defined on multiple physical m/c, it is called Horizontal Scaling. The objective is to use more than one less powerful m/c more efficiently.
What read() returns at end of file in perl?
0. A defined (but false) 0 value is the proper indication of the end of file for read() and sysread().
Explain Inheritance, Encapsulation, Polymorphism and Abstraction in java
Inheritance is the process by which objects of one class acquire the properties of objects of another class. A class that is inherited is c...
Which object is needed to group Checkboxes to make them exclusive?
How to find length of an array in perl?
This will give you the length of an array : $@array
How java’s garbage collector works
The Java garbage collector is a mark-sweep garbage collector that scans Java’s dynamic memory areas for objects, marking those that are ref...
In what context should the value of Swing components be updated directly?
Swing components should be updated directly only in the context of callback methods invoked from the event dispatch thread.
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