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 synchronized blocks in java?

1200

Explain about abstract classes in java?

1048

What are reference variables in java?

1138

Explain about method local inner classes or local inner classes in java?

1042

State some situations where exceptions may arise in java?

1072

Is it possible for yielded thread to get chance for its execution again ?

1050

Difference between this() and super() in java ?

1094

Explain java coding standards for classes or java coding conventions for classes?

1140

What is constructor in java ?

1213

Difference between ‘>>’ and ‘>>>’ operators in java?

1139

Can we restart a dead thread in java?

1019

List out five keywords related to exception handling ?

1031

Explain what access modifiers can be used for variables?

1078

Can we synchronize static methods in java?

1118

Can we overload run() method in java?

1222

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Un-Answered Questions { Core Java }

What is the driver class?

1059

What is heterogeneous in java?

990

What does it mean to be immutable?

997

What are the parts of methodology?

995

Is it safe to install java on my computer?

1163

What is the need of transient variables in Java ?

1086

Is nullpointerexception checked or unchecked?

1048

Can an object subclass another object?

1136

How do you check if an arraylist is not empty?

1139

What is the difference between equals() and?

1215

How to create packages in java?

965

What is preparedstatement in java?

1069

What is time complexity algorithm?

1062

How many types of exception can occur in a java program?

1003

What is starvation?

1337

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