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How do you decide when to use HashMap and when to use TreeMap?
When we want to perform deletion, insertion and locate elements in a Map then HashMap is used.
Whereas TreeMap is used when we want to traverse elements in a sorted order. Depending upon size of collection, adding elements to HashMap is easy. But for sorted elements traversal we can convert HashMap into TreeMap.
I want to develop a Chat application for j2me Project Description: We require a chat application for a community website. Skills required: Java, J2ME
What is an object's lock and which objects have locks? An object's lock is a mechanism that is used by multiple threads to get synchronized access to the object. A thread may i
Explain final fields ? You may also declare fields to be final. This is not the similar thing as declaring a method or class to be final. While a field is declared final, it is
Difference between HashMap and Hash table HashMap: It allow us to have null values and also one null key It is Unsynchronized. Iterator in HashMap is Fail-Safe.
Explain the Basic Applet Life Cycle ? 1. The browser reads the HTML page and seraches any tags. 2. The browser parses the tag to search the CODE and possibly CODEBASE att
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How to Scaling Images in java applet? You can scale an image within a particular rectangle using this version of the drawImage() method: public boolean drawImage(Image img,
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Describe Unbalanced Arrays ? Such as C Java does not have true multidimensional arrays. Java fakes multidimensional arrays by using arrays of arrays. This means that it is prob
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