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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.
What do mean by synchronized methods and synchronized statements ?
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What is the Data Normalization? Also define its goal. Data normalization is to sort out complex data within easy form. It uses to simplify the complex information to form it mo
Differentiate between a Choice and a List ?
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