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

Core Java Interview Questions

Questions Answers Views Company eMail

Explain JPA in Java.

1 742

Briefly explain the term Spring Framework

1 720

Difference between static methods, static variables, and static classes in Java.

1 827

What is a Java Virtual Machine?

1 719

. Define Copy Constructor in Java

1 745

Can Java be said to be the complete object-oriented programming language

1 729

Define Wrapper Classes in Java.

1 676

Define package in Java.

1 703

. Differentiate between instance and local variables.

1 784

. Explain Java String Pool.

1 726

What happens when the main() isn't declared as static?

1 725

Why is Java a platform independent language?

1 810

Why is the main method static in Java?

1 805

What part of memory - Stack or Heap - is cleaned in the garbage collection process?

1 727

What is the difference between the program and the process?

1 821

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Un-Answered Questions { Core Java }

What is difference between final and immutable?

1085

What are local variables?

1013

Why java strings are immutable in nature?

990

How many types of constructors are used in java?

1108

Explain the Propertie sof class?

1002

How to create an interface?

1022

Can we use catch statement for checked exceptions when there is no chance of raising exception in our code?

987

What is the difference between math floor and math round?

982

What is a qualifier in a sentence?

938

What is %02d?

1044

What is double parsedouble in java?

969

What is a treeset in java?

997

What are some examples of variable costs?

900

Why can't we override private static methods?

930

How many bits is a double?

955

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