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Cognizant Core Java Interview Questions
Questions Answers Views Company eMail

How OOPS concept is achieved in Java?

6 18662

Explain difference between final, finally and finalize?

3 25360

what is the difference between abstract class and Interface?where we can use it in realtime projects?

23 57305

explain System.out.println

107 148405

What is hard code & soft code?

7 51983





What is Hash Code in Java?

6 11538

What are uses of Hash Code?

2 5151

Difference between interface and abstract class with ex.

4 6445

What is multithreading ???? How to stop multithrading in java????

1 3555

Suppose there is an array list [10,5,20,19,15,24].Print them in ascending & descending order in collection framework concept ???

2 4523

What is default specifier ??? Use of default specifier ???

4 4776

Is Java Class Threadsafe ????? How to make Java class Thread safe??

2 5578

I have a string like _a01_a02_a03_ and another string like _2_1.5_4_ as input.I want to extract a01,a02... to a string array and 2,1.5,etc to a double array with a01 corresponds to 2 and a02 to 1.5 etc. Need code in core java.. Can you do it?

1 2504

What are non-access modifiers?

2 1574

Why do we need to override equals() and hascode() method of object class?

1 1570

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Cognizant Core Java Interview Questions





Un-Answered Questions

What are different between mongodb and sql server databases?

1


Can we have enum in entity framework?

32


What does the error too many unrecognized commands mean?

1874


How is the gain affected by the introduction of feedback in a control system.

49


What a test plan contains

928






What do you mean by trait in scala and when it is used?

1


What you know about structures in C++?

33


In sap business one sdk, which object is used for executing sql queries and stored procedures ?

29


any one giv test cases for wordpad using equivalence class partioning

1936


What process happens behind, when we try to access any page on the internet.

1143


Hai I have one net cam.... I want to receive the captured image to my mail id.. is it possible?.....plz give a better solution.......

905


How to insert and update data into a table with "insert" and "update" statements?

16


What are the three states set in a checkstate property?

26


A fan is handling hot air at 285 degC with flow of 411635 m3/hr, power consumed is 1165kW and efficiency is 66%. what will happen to flow, power and efficiency of the fan if a water spray system is introduced to reduce the air temperature up to 200 degC? (also please refer any document regarding this)

912


How internet addresses (ipv6) might affect the development and implementation of the internet of things (iot)?

1