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 Public static void main?

IBM, Vetech,

2 19950

What is file class and what is its purpose?

1 4257

what is Remote Reference Layer ?

1 5432

What is static binding and where it occurs?

4 10104

Can a Byte object be cast to a double value?

KO,

3 16226

Can a double value be cast to a byte?

3 11222

Can a for statement loop indefinitely?

3 10004

what is the form of storage space in java?

5 9254

What are the latest versions in JAVA related areas?

Netcraft,

3 8189

What is the minimum and maximum length of an identifier?

TCS,

6 17032

What class is used to implement a Throwable array?

3 7479

What is the default initialized value of String type variable?

4 7545

What is the default initialized value of a boolean type variable?

3 5723

When garbage collector invokes object?s finalize() method?

5 8114

How Applets & Servlets will communicate with each other?

2 7580

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Un-Answered Questions { Core Java }

What is the static method?

1084

What is the generic function?

992

What is the difference between private & public & friendly classes?

1077

What is charat java?

982

Can we create an object of static class in java?

1023

How many bytes is a url?

992

How do you compare values in java?

1032

In the below example, how many string objects are created?

1049

What are autoboxing and unboxing? When does it occur?

965

Which data type is class in java?

1023

What is the default value of the local variables?

1020

5 Coding best practices you learned in java?

1021

Difference between final and effectively final ?

1114

What is local class in java?

1094

How do weakhashmap works?

1163

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