Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

What are the different types of collections in java?

1012

How do you do descending order in java?

1007

What is anagram number?

1017

What is anagram of a string?

995

What is anagram word?

1052

How does linkedhashmap work in java?

1078

What is stack class in java?

1093

What is string in java with example?

1107

How to sort an array in java without using sort method?

927

How do you generate random numbers in java?

1058

What is navigable map in java?

1027

What is native method in java?

1117

How to sort double array in java?

1031

What was java originally called?

998

How do you define a set in java?

1057

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Un-Answered Questions { Core Java }

What is an enumeration?

1119

Explain about oops concepts.

1170

Can we override constructor?

1081

What is backdrop?

1126

Why call by value prevents parameter value change?

1123

Why are arrays useful in java?

1073

What is the basic concepts of OOPS?

1244

Explain about doubly linked list

1090

How many bytes is a unicode character?

1057

What is the java reflection api? Why it’s so important to have?

1023

Is null function in java?

1101

How to create an interface?

1125

what is instanceof operator used in java?

1078

What is consumer in java?

1010

How can you write a loop indefinitely in java programming?

1067

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