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

Core Java Interview Questions

Questions Answers Views Company eMail

Can final class have constructor?

942

Can we inherit a class with private constructor?

1145

What is blank final variable?

1081

Is empty set an element of empty set?

1122

What is method reference in java?

1165

What are actual parameters?

1056

How many functional interfaces does java 8 have?

1040

Can we inherit inner class?

1032

What is final variable?

959

What are different types of control structures?

989

Does constructor be static?

1052

Can you override static methods?

1022

What is method with example?

1138

What is mysql driver class name?

1161

What is final method?

1084

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Un-Answered Questions { Core Java }

Can you give names of Container classes?

2322

Is string pool garbage collected?

1032

What does || mean in code?

1057

What are conditionals and its types?

1163

Why are data types important?

1122

Does substring create a new object?

1016

How do you delete a list in java?

980

Can you use this() and super() both in a constructor?

999

What do negative exponents mean?

1065

What is java thread dump, how can we get java thread dump of a program?

1016

Is null a string in java?

1094

What's the base class in java from which all classes are derived?

1286

How do I get 64 bit java?

1136

What do you mean by local variable and instance variable?

968

How do you read a char in java?

1047

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