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 cloneable interface?

8 18796

How many methods does cloneable interface contains?

6 11248

What is a compilation unit?

2 4499

What is a default package ?

7 11737

What is a layout manager?

1 3954

What is a native method?

2 5407

What is a reflection package?

2 5559

What is a serializable interface?

4 8124

What is a stream? what are the different types and classes of Streams?

2 8291

What is unicode?

1 4964

What is a void return type?

6 20618

What is adapter class?

12 53837

What is an Iterator interface?

2 5825

What is an abstract class and abstract method?

5 16041

What is an enumeration class?

2 6095

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Un-Answered Questions { Core Java }

Can we make the abstract methods static in java?

1062

What is a map? What are the implementations of map?

1095

Do we need to manually write Copy Constructor?

1033

State the main difference between c++ and java?

1088

Can java hashmap have duplicate keys?

1028

What do you mean by collectors in java 8?

935

What is the order of arraylist in java?

1137

How do you reverse sort in java?

943

What is a constructor, constructor overloading in java?

997

What is a map in java?

988

How do you trim a space in java?

983

which is advanced deep technology in java launched by the sun microsystem??? The answer is very logical If u need correct answer mail me at priya_gupta@gmail.com

3660

What is static keyword?

1150

What are conditionals and its types?

1146

Is it correct to say that due to garbage collection feature in java, a java program never goes out of memory?

1019

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