What is collections framework?


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More Core Java Interview Questions

all are saying java doesn't support multiple inheritance but by default Object class is super class for all the user defined classes and we can extend atmost one class so each class can extend more than one class so java supports multiple inheritance?i am confused with this,pls any one explain me.

8 Answers   CFG,


What is the benefit of abstract class?

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Does java allow default arguments?

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Is there any tag in htm to upload and download files?

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what is difference between Interface and abstract class

2 Answers   GCPL,






What is not object oriented programming?

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What are the characteristics of java?

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what is the constructor and how many types of constructors are used in java?

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What is callable java?

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What are the basic concepts of OOPS in java?

0 Answers   Axtria, ITC Indian Tobacco Company,


Scenario: There are 1 to 100 numbers. Each number should be keep in the each column like from A column to Z column ie 1 to 26. From 27 to 52 should be in 2nd row in the excel sheet. This has to be continue till 100. How do you write Java program and what are various methods.

4 Answers   Cap Gemini,


What is the difference between hashset and treeset in java?

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