Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Explain reverse a linked list iterative solution in java?

931

Explain java code for recursive solution's base case?

1052

Explain reverse a linked list recursive java solution?

997

Do you know how to reverse string in java?

1164

Do you know why doesn't the java library use a randomized version of quicksort?

965

How to reverse string in java?

1222

Why doesn't the java library use a randomized version of quicksort?

1006

What are wrapped classes in java programming?

1074

What are synchronized methods and synchronized statements in java programming?

1033

What is the properties class in java programming?

1023

If a class is declared without any access modifiers, where may the class be accessed in java programming?

1238

What is the difference between the reader/writer class hierarchy and the inputstream/outputstream class hierarchy in java programming?

1141

What is the difference between the font and fontmetrics classes in java programming?

1175

What is the purpose of the file class in java programming?

1042

What classes of exceptions may be caught by a catch clause in java programming?

1190

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Un-Answered Questions { Core Java }

What is serial version uid and its importance in java?

1060

What are actual parameters?

1054

What is the use of generics? When was it added to the Java development Kit?

1034

What is a short in java?

1061

Can we create a class inside a class in java?

1099

Which variable is the independent variable?

992

What initialize variables?

1038

How will you calculate the depth of a binary tree if the tree contains 15 nodes?

1101

What is core java used for?

1142

Can we force garbage collector to run ?

1069

What do you understand by copy constructor in java?

946

How do you escape sequences in java?

1083

Is java a super set of javascript?

1119

What does the string method compareto () do?

1072

Why is it called boolean?

1023

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