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 procedure writing?

993

What is the difference between actual and formal parameters?

964

What is the difference between a method and a procedure?

1078

What is the use of private static?

1057

What is qms certification?

968

Why does abstract class have constructor?

1015

Why should I use abstract class?

1118

What is the main advantage of passing argument by reference?

1016

What is java full form?

1042

How many types of java are there?

995

What is difference between java and java ee?

1047

Is java 11 paid version?

1004

What are the benefits of java?

1152

Is java se open source?

1044

What is difference between core java and java ee?

914

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Un-Answered Questions { Core Java }

Define iterator and methods in iterator?

977

Explain access specifiers?

1191

Why Java is not pure Object Oriented language?

1122

Why generics are used in java?

1067

How many bits is a double?

1027

What is a blocking method in Java?

1260

What is the benefit of inner / nested classes ?

1003

What do you meant by active and passive objects?

1101

Can singleton class be serialized?

974

Can You Have Virtual Functions In Java?

1162

Difference between string, string builder, and string buffer?

1121

Which is the best sorting technique in java?

996

What is the memory leak in java?

1053

What methods are used in Servlet?Applet communication?

2266

Can a main method be declared final?

1066

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