What are three ways in which a thread can enter the waiting state?Or What are different ways in which a thread can enter the waiting state? A thread can enter the waiting state by the following ways: 1. Invoking its sleep() method, 2. By blocking on I/O 3. By unsuccessfully attempting to acquire an object’s [...]

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What is the difference between Abstract class and Interface Or When should you use an abstract class, when an interface, when both? Or What is similarities/difference between an Abstract class and Interface? Or What is the difference between interface and an abstract class?1. Abstract class is a class which contain one or more abstract methods, [...]

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What is HashMap and Map?Map is Interface and Hashmap is class that implements this interface. What is the significance of ListIterator? Or What is the difference b/w Iterator and ListIterator? Iterator : Enables you to cycle through a collection in the forward direction only, for obtaining or removing elements ListIterator : It extends Iterator, allow [...]

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How To Use Remote Scripting With Ajax Implementing the Protocol Remote scripting is a technique that permits JavaScript to make a request for data via a server without needing to refresh the web page. This basic definition describes everything you need to know about remote scripting. The other factors which go into creating a streamlined [...]

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