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 exception handling keywords in java?

1035

What is meant by method overriding?

1113

What is the purpose of a transient variable?

1070

Difference between notify() method and notifyall() method in java?

972

Explain about public and private access specifiers?

1059

What do you mean by constructor?

981

What is the disadvantage of synchronization?

1016

Explain about wait() method?

1026

What are the java ide’s?

1027

What is the final keyword in java?

1 1436

Difference between serialization and deserialization in java?

1141

How do you make a thread in java?

1099

When to use runnable interface vs thread class in java?

981

Explain thread life cycle in java?

1039

What is meant by local variable and instance variable?

1019

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Un-Answered Questions { Core Java }

What is the properties class?

1092

What is the basic concepts of OOPS?

1202

Can we create our own wrapper class in java?

970

what is the use of bean managed and container managed with example?

1976

What is covariant return type?

1115

What is scope & storage allocation of static, local and register variables? Explain with an example.

1014

Enlist few advantages of inheritance?

1075

What is stack explain?

1000

Is java a utf 8 string?

976

How do you use wildcards?

1063

What is the use of keywords in java?

982

what is the difference between yielding and sleeping? : Java thread

967

Differentiate between overriding and overloading cases?

1106

Can a static class implement an interface?

1126

What is the use of :: in java?

1013

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