Core Java Interview Questions and Answers
Core Java : What is the Vector class?

What is the Vector class?

The Vector class provides the capability to implement a growable array of objects
Category: Core Java Date: 11/9/2010 1:28:52 PM
Core Java : What is primordial class loader?

What is primordial class loader?

It is the class that is responsible for loading the class and it is the only in All JVM.
Category: Core Java Date: 11/9/2010 12:56:51 PM
Core Java : What is the difference between a while statement and a do  statement?

What is the difference between a while statement and a do statement?

A while statement checks at the beginning of a loop to see whether the next loop iteration should oc....
Category: Core Java Date: 11/9/2010 11:39:53 AM
Core Java : Is the garbage collection algorithm vendor implemented?

Is the garbage collection algorithm vendor implemented?

yes
Category: Core Java Date: 11/9/2010 11:18:47 AM
Core Java : What is the Map interface?

What is the Map interface?

The Map interface replaces the JDK 1.1 Dictionary class and is used associate keys with values.
Category: Core Java Date: 11/9/2010 11:06:53 AM
Core Java : What happens when you add a double value to a String?

What happens when you add a double value to a String?

The result is a String object.
Category: Core Java Date: 11/9/2010 9:17:55 AM
Core Java : How is it possible for two String objects with identical values not to be equal  under the == operator?

How is it possible for two String objects with identical values not to be equal under the == operat....

The == operator compares two objects to determine if they are the same object in memory. It is possi....
Category: Core Java Date: 11/9/2010 8:44:54 AM
Core Java : How many times may the garbage collector invoke an object's finalize() method ?

How many times may the garbage collector invoke an object's finalize() method ?

An object's finalize() method may only be invoked once.
Category: Core Java Date: 11/9/2010 8:23:48 AM
Core Java : Which class is the immediate superclass of the Container class?

Which class is the immediate superclass of the Container class?

Component
Category: Core Java Date: 11/9/2010 8:11:53 AM
Core Java : How many bits are used to represent Unicode, ASCII, UTF-16, and UTF-8 characters?

How many bits are used to represent Unicode, ASCII, UTF-16, and UTF-8 characters?

Unicode requires 16 bits and ASCII require 7 bits, UTF-8 represents characters using 8, 16, and 18 b....
Category: Core Java Date: 11/9/2010 7:50:48 AM
Core Java : What is encapsulation?

What is encapsulation?

Encapsulation describes the ability of an object to hide its data and methods from the rest of the w....
Category: Core Java Date: 11/9/2010 7:39:52 AM
Core Java : What is the difference between Exception and Error ?

What is the difference between Exception and Error ?

Exception is recoverable and the Error is unrecoverable.
Category: Core Java Date: 11/9/2010 7:06:52 AM
Core Java : When is the finally clause of a try-catch-finally statement executed?

When is the finally clause of a try-catch-finally statement executed?

Unless the thread of execution terminates or an exception occurs within the execution of the finally....
Category: Core Java Date: 11/9/2010 6:02:49 AM
Core Java : What is the purpose of the enableEvents() method?

What is the purpose of the enableEvents() method?

The enableEvents() method is used to enable an event for a particular object. Normally, an event is ....
Category: Core Java Date: 11/9/2010 5:50:54 AM
Core Java : What is the difference between the Reader/Writer class hierarchy and the  InputStream/OutputStream class hierarchy?

What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream c....

The Reader/Writer class hierarchy is character-oriented, and the InputStream/OutputStream class hier....
Category: Core Java Date: 11/9/2010 5:29:48 AM
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Recent Answers
How do you declare destructor in c#?
kumar answered: by implementing finalize and dispose method