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 ways of implementing thread? Which one is more advantageous?

1011

What is the covariant return type?

1112

Explain a few methods of overloading best practices in java?

999

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

960

What is the static keyword?

1104

What is the most important feature of java? What is an interface?

1026

What best practices should you follow while writing multithreaded code in java?

1086

How do you convert string to int in java?

1092

What is the difference between final, finally and finalize() in java?

1177

What is an immutable object?

1117

How do you identify if jvm is 32-bit or 64-bit from java program?

982

Explain the importance of throws keyword in java?

1012

Explain why wait(), notify() and notifyall() methods are in object class rather than in the reading class?

1001

What is the difference between @before and @beforeclass annotation?

1132

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

997

Post New Core Java Questions

Un-Answered Questions { Core Java }

Which oo concept is achieved by using overloading and overriding?

1031

What are the types of methodology?

1122

Why you should not use singleton?

1001

Is it possible to compare various strings with the help of == operator? What are the risks involved?

1090

What is static keyword in java?

1014

Does a class inherit the constructors of its superclass in java programming?

1138

What is the use of accept () method in java?

1110

how to deploy tomcatserver to weblogic server? write d following steps?

1981

What does it mean that a class or member is final?

1014

How do you sort a set in java?

925

What are static methods?

1062

What is the difference between heap and stack memory?

1212

What does sizeof return?

1005

Give few difference between constructor and method?

987

what is the purpose of using rmisecuritymanager in rmi?

987

For More Un-Answered { Core Java } Questions Click Here