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

Core Java Interview Questions

Questions Answers Views Company eMail

Can we declare the main method of our class as private?

1005

What are loops in java? What are three types of loops?

1033

What are java packages? What's the significance of packages?

1331

In java, how we can disallow serialization of variables?

994

What are loops in java?

2 1269

Why runnable interface is used in java?

1136

How garbage collection is done in java?

1051

There are two classes named classa and classb. Both classes are in the same package. Can a private member of classa can be accessed by an object of classb?

1490

What is the base class in java from which all classes are derived?

979

Can we declare a class as abstract without having any abstract method?

999

Which of the following classes will have more memory allocated?

1017

Does importing a package imports its sub-packages as well in java?

969

How objects of a class are created if no constructor is defined in the class?

1070

Give an example of use of pointers in java class.

1031

I want to persist data of objects for later use. What is the best approach to do so?

1064

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Un-Answered Questions { Core Java }

Can we declare an interface as final?

1067

What is a databasemetadata?

948

Is it possible for a yielded thread to get chance for its execution again?

941

What is the super void?

902

What is the synchronized method modifier?

1203

What is the use of generics? When was it added to the Java development Kit?

1019

What does business logic mean?

995

hi am an engineering student and my next plan is for ms in either in us or australia i got my passport but i dont know anything bout visa can u give brief idea 1)How to get prepared for visa and 2)How to apply for top universities and 3)How to pay the fee and so on These all are basic questions plz give me a clear idea

1923

What does the “static” keyword mean?

1103

What is javac used for?

937

How do you check if a string is lexicographically in java?

959

What is multiple inheritance? Is it supported by java?

964

How many ways can an argument be passed to a subroutine and explain them?

1029

What is data type example?

961

What is a parameter in simple terms?

999

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