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16) What are different Collection views provided by Map interface? Tell the difference questions 18) Difference between Set and List? Another reason is that not everybody will have a reason to have Cloneable collection because if it has very large data, then every unnecessary clone operation will consume a big memory.

Classes and Structs Constructor C 11(C 0x): rvalue references, move constructor, and lambda, etc. Debugging Crash & Memory Leak Design Patterns in C ...

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I am aiming both beginners and senior level questions, so bear with me if you found some questions too basic because they might be useful for some junior developers. 3) Why Collection interface does not extend Cloneable and Serializable interface? Map interface related 11) Why we use Map interface? There are other reasons also such as Map supports key Set, value Set etc. Due to such big differences, Collection interface was not used in Map interface, and it was build in separate hierarchy. The intent is to check the knowledge of applicant in Collection utility classes.

Questions in this post: General questions 1) What is the Java Collections API? 4) Why Map interface does not extend Collection interface? For now, lets learn that there are two utility classes in Collection framework which are mostly seen in interviews i.e. Collections class provides some static functions to perform specific operations on collection types.