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 we have any code between try and catch blocks?

1004

What is default exception handling in java?

1043

Explain the importance of throwable class and its methods?

1059

Explain java coding standards for interfaces?

1127

Can we have try block without catch block?

1043

Explain about interthread communication and how it takes place in java?

1045

What are unchecked exceptions in java?

1051

Can we use synchronized block for primitives?

1083

When a thread is executing synchronized methods , then is it possible to execute other synchronized methods simultaneously by other threads?

1084

What is final access modifier in java?

1165

Explain throw keyword in java?

1055

How do we access static members in java?

1127

What are constants and how to create constants in java?

1000

What are identifiers in java?

1143

Explain importance of finally block in java?

1050

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Un-Answered Questions { Core Java }

How do you invoke a method?

1019

Can java program run without jre?

1025

Can we execute a program without main?

1043

What does opcode mean?

1101

Difference between current previous versions of Java?

1041

Which collections are thread safe in java?

937

What is the super void?

916

Can we increase size of array?

1047

What is a default method?

1072

What is the function of log?

1030

What's the purpose of using break in each case of switch statement?

1006

What are the differences between heap and stack memory in java?

1071

What is structure of java heap? What is perm gen space in heap?

1140

Can we nested try statements in java?

1113

What are the different data types in java?

1022

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