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?

974

Explain java code for recursive solution's base case?

1099

Explain reverse a linked list recursive java solution?

1053

Do you know how to reverse string in java?

1223

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

1008

How to reverse string in java?

1280

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

1041

What are wrapped classes in java programming?

1112

What are synchronized methods and synchronized statements in java programming?

1091

What is the properties class in java programming?

1070

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

1311

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

1191

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

1283

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

1110

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

1248

Post New Core Java Questions

Un-Answered Questions { Core Java }

What are passing parameters?

1151

Which collections are thread safe in java?

974

How can you make sure that your singleton class will always return single instance in multi-threaded environment?

1094

How finally used under exception handling?

994

What is meant by attribute?

1222

What is bytecode in java ?

1262

How do you delete a list in java?

1028

What are the practical benefits, if any, of importing a specific class rather than an entire package (e.g. Import java.net.* Versus import java.net.socket)?

1176

What is string manipulation?

1073

Where and how can you use a private constructor?

1053

What are the two types of exceptions in java? Which are the differences between them?

1170

What is final modifier?

1147

Explain wait(), notify() and notifyall() methods of object class ?

1128

What is class variable java?

1071

What is the new line character?

1250

For More Un-Answered { Core Java } Questions Click Here