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

Core Java Interview Questions

Questions Answers Views Company eMail

How we can generate random numbers in java?

1097

What do you mean by local variable and instance variable?

910

What is the differences between c++ and java? Explain

1012

Define an applet in java?

1102

What is the differences between heap and stack memory in java? Explain

941

what is anonymous class in java?

993

What is the difference between the ">>" and " >>>" operators in java?

945

Explain the difference between abstract classes and interfaces in java?

1114

How we can make copy of a java object?

1055

Explain different states of a thread in java?

1017

What are the java ide's? Explain

981

what do you mean by classloader?

1038

Explain the difference between an object-oriented programming language and object-based programming language?

944

What is java and why do we need it? Explain

1066

what is interface in java? Explain

920

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Un-Answered Questions { Core Java }

Write a factorial program using recursion in java?

962

What is a local, member and a class variable?

995

Can you declare an interface method static?

1020

How do you escape sequences in java?

1016

What is java and its types?

1037

What is a map? What are the implementations of map?

1052

What are loops in java?

1177

Can a lock be acquired on a class in java programming?

937

What is sorting in java?

942

Why string is not thread safe?

970

How can we access some class in another class in java?

945

Which are the two subclasses under exception class?

1020

What is meant by 'bit masking' in java?

1131

Is java 11 paid version?

932

Can we overload the methods by making them static?

956

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