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 a top level class be private or protected?

1061

Is it necessary that each try block must be followed by a catch block?

1024

Can we have any other return type than void for main method?

958

In a class implementing an interface, can we change the value of any variable defined in the interface?

1098

What is the difference between error and an exception?

1165

How destructors are defined in java?

1197

What is the difference between inner class and nested class?

1101

What is the difference between preemptive scheduling and time slicing?

1078

Explain the use of sublass in a java program?

1029

List primitive java types?

1048

Where import statement is used in a java program?

1138

What is mutable object and immutable object?

1137

What is difference between path and classpath?

1186

What are the supported platforms by java programming language?

1051

What is a values collection view ?

1101

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Un-Answered Questions { Core Java }

Why is it called buffering?

1131

What are the skills required for core java?

1025

What is anagram in java?

938

What are the new features in java 8? Explain

957

What are local variables?

1058

What are the 2 types of java programs?

1121

How to split arraylist elements in java?

1187

Can an unreferenced object be referenced again?

1196

What is constructor in java ?

1201

If I only change the return type, does the method become overloaded?

933

What is another word for methodology?

1021

Why synchronization is important in java?

1049

Why parsing is done?

990

What is the purpose of tostring() method in java?

1165

What is an iterator java?

1123

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