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 is an object’s lock and which object’s have locks?

982

What will be the output of round(3.7) and ceil(3.7)?

1135

How do you decide when to use arraylist and linkedlist?

1003

Which object oriented concept is achieved by using overloading and overriding?

1135

What are the advantages of arraylist over arrays?

1114

Which class represents the socket that both the client and server use to communicate with each other?

1055

What is the difference between yielding and sleeping?

1133

What are the access modifiers in java?

1056

Break statement can be used as labels in java?

1024

What are encapsulation, inheritance and polymorphism?

1035

I want my class to be developed in such a way that no other class (even derived class) can create its objects. Define how can I do so?

1190

Difference between static and dynamic class loading.

1144

How can we find the actual size of an object on the heap?

1330

Does java allow default arguments?

1010

Define how does a try statement determine which catch clause should be used to handle an exception?

1185

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Un-Answered Questions { Core Java }

Explain about method local inner classes or local inner classes in java?

1042

What is polymorphism java example?

1027

What are the 8 data types in java?

1015

How does list work in java?

927

What is subsequence of a string?

1120

What are thread groups?

1014

What does super keyword do?

1090

Explain about public and private access specifiers?

1074

Does A Class Inherit The Constructors Of Its Superclass?

1092

What is numel matlab?

1360

Can we override the static method?

1043

When is the arraystoreexception thrown?

1045

Implement two stacks using a single array.

1077

what is method reference in java 8?

1055

Can you pass functions in java?

1049

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