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 advantages of exception handling in java?

1038

When do we use synchronized methods in java?

1063

What are thread priorities and importance of thread priorities in java?

1157

What is method overriding in java ?

1210

Assume a thread has lock on it, calling sleep() method on that thread will release the lock?

1121

What are user defined exceptions?

1064

Difference between overriding and overloading in java?

1084

What is difference between length and length() method in java ?

1009

Can we have multiple classes in single file ?

1088

Explain what access modifiers can be used for methods?

1103

What is super keyword in java ?

1 1853

Explain java coding standards for methods?

1057

Explain about member inner classes?

1115

Can we override static methods in java?

1089

What is jit compiler ?

994

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Un-Answered Questions { Core Java }

What is boolean in java?

990

What is the difference between compile-time polymorphism and runtime polymorphism?

1014

What language is java written?

1034

What are the skills required for core java?

1032

What is application tier?

1135

What is the maximum size of hashmap in java?

1023

What are dot operator queries?

1125

What is boolean law?

1082

Mention some features of java?

976

A person says that he compiled a java class successfully without even having a main method in it? Is it possible?

1068

What is the difference between yielding and sleeping in java programming?

1182

What is a superclass?

1366

Is null or empty java?

998

Explain the difference between hashmap and hashtable in java?

963

What are the types of arrays in java?

1103

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