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 is a line break example?

994

Does sprintf allocate memory?

1102

Is space a char?

922

How do I type unicode?

978

Can we override compareto method?

944

How does compareto method work?

962

What is difference between == equals () and compareto () method?

1044

What is sleep method?

1147

How do you insert a line break?

906

How do you compare characters in java?

987

What is byte value?

989

What is the function of compareto in java?

1049

Does sprintf add a null terminator?

1095

Does treeset use compareto?

976

What is difference between printf and scanf?

1146

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Un-Answered Questions { Core Java }

What is bufferedwriter?

971

What is jar?

1120

What is multithreading in java?

1054

What is math floor in java?

943

How are the elements of a gridbaglayout organized in java programming?

981

Can we write a class without main method in java?

955

What is the difference between Array and Hash Table?

1027

Write a program to check for a prime number in java?

1039

Why does the integer quotient -0/3 yield 0, but the double quotient -0.0/3.0 yields – 0.0?

1046

What are the differences between heap and stack memory?

1081

5 Coding best practices you learned in java?

1012

Can you extend main method in java?

1178

What is a function easy definition?

1004

What is the covariant return type?

1087

What is loop in java?

977

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