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

Core Java Interview Questions

Questions Answers Views Company eMail

Difference between string, string builder, and string buffer?

1036

Explain the difference between throw and throws in java?

959

What is jit compiler in java?

1054

Who developed java?

944

What is finalize() function in java?

974

Explain the inheritance?

935

How we can skip finally block of exception even if some exception occurs in the exception block in java?

894

What is the base class of all exception classes in java?

1015

Explain the difference between jdk, jre, and jvm?

1007

What is java virtual machine? Explain

980

how we can make a read-only class in java?

949

What is "this" keyword in java? Explain

1064

how we can create packages in java?

927

What is abstract class? Explain

999

what is instanceof operator used in java?

987

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Un-Answered Questions { Core Java }

Explain the polymorphism principle?

978

What does index mean in java?

945

Explain public static void main(string args[]) in java.

948

What is finalize() function in java?

974

What is the relationship between clipping and repainting under awt?

1105

How do you declare an empty string?

1017

What is a heavyweight component?

989

What is difference between an object and a class?

1089

Can we create an object of static class in java?

983

Can an integer be a string?

999

What is the method to expand and collapse nodes in a jtree?

998

What is the difference between static and global variables and also define what are volatile variables?

999

What is method with example?

1043

Implementations of set interface?

967

Which are different kinds of source code?

1067

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