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?

1132

What do you mean by local variable and instance variable?

954

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

1045

Define an applet in java?

1161

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

982

what is anonymous class in java?

1034

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

983

Explain the difference between abstract classes and interfaces in java?

1182

How we can make copy of a java object?

1100

Explain different states of a thread in java?

1058

What are the java ide's? Explain

1043

what do you mean by classloader?

1090

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

984

What is java and why do we need it? Explain

1137

what is interface in java? Explain

968

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Un-Answered Questions { Core Java }

Can a class be declared as static?

1171

What is difference between add() and addelement() in vector?

1534

Explain about doubly linked list

1032

What is multithreading and its advantages?

1071

How a string is stored in memory?

1020

Can we override tostring method in java?

970

How is Object Oriented Programming different from Procedure Oriented Programming?

1049

What is the difference between a vector & an array list?

1166

How do you do absolute value in java?

982

What are checked exceptions?

1034

Why java is considered as platform independent?

1005

How do generics work?

944

Which class is the superclass of all classes?

1110

Why do we use predicate in java?

1049

Does hashset allow duplicates in java?

1118

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