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

Core Java Interview Questions

Questions Answers Views Company eMail

Define canvas?

988

What will be the default values of all the elements of an array defined as an instance variable?

1038

What’s the difference between the methods sleep() and wait()?

1022

What’s the difference between constructors and other methods?

1006

Is it possible to define a method in java class but provide it’s implementation in the code of another language like c?

1037

Is it correct to say that due to garbage collection feature in java, a java program never goes out of memory?

1028

What environment variables do I need to set on my machine in order to be able to run java programs?

1024

What are the restriction imposed on a static method or a static block of code?

1061

What will happen to the exception object after exception handling?

998

What will happen if static modifier is removed from the signature of the main method?

973

What is the difference between superclass and subclass?

1183

What is meant by inheritance and what are its advantages?

1110

Under what conditions is an object’s finalize() method invoked by the garbage collector?

1047

If a method is declared as protected, where may the method be accessed?

1021

What is constructor chaining and how is it achieved in java?

1164

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Un-Answered Questions { Core Java }

What is set and get methods in java?

985

When is finally block not called?

1097

How long will it take to learn java?

1000

Is sizeof a keyword in java programming?

1072

How do you access command-line arguments within the code?

1067

When is an object subject to garbage collection?

1084

What is gc()?

1075

What is difference between fileinputstream and filereader in java?

1075

What is the protected method modifier?

1053

What is final keyword in java?

1028

What does localhost mean?

964

What is parsing in grammar?

1045

How do you do a line break in java?

1033

What is literal example?

961

What is java regex?

1017

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