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Core Java Interview Questions
Questions Answers Views Company eMail

What is covariant return type?

1115

Explain different forms of polymorphism?

1149

Is there any difference between synchronized methods and synchronized statements?

1098

Tell us something about an iterator.

963

Write a code to show a static variable?

1092

What is super?

1165

Can we declare a static variable inside a method?

1001

What do you understand by soft reference?

1056

If a class is declared without any access modifiers, where can the class be accessed?

1066

What is instance synchronization?

1048

What is callablestatement? How you can call stored procedure to pass in parameter?

1025

Are the imports checked for validity at compile time? Will the code containing an import such as java.lang.abcd compile?

1105

What is the common usage of serialization?

1147

What is a prefix function.write down a code to compute prefix function.

1058

What are some alternatives to inheritance?

1103


Post New Core Java Questions

Un-Answered Questions { Core Java }

What are the two ways of implementing multi-threading in java?

1509


How do you reverse a word in java?

1081


What is a treemap in java?

1011


How do you use find and replace?

959


Is void a data type in java?

988


What is data type in computer?

961


How to create a thread in java?

1139


What are unchecked exceptions in java?

1039


Explain about the performance aspects of core java?

1056


Why constructor has no return type?

1099


Can a main method be overloaded?

1022


Which command from the jdk compiles a java program?

995


Can we override singleton class?

985


What are the different types of inner classes?

1038


What is parsing a sentence?

1081