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

Core Java Interview Questions

Questions Answers Views Company eMail

write a program to create an vector with string(add,remove) operation.and value should be enter through keyboard.

Axcend,

2126

write a program to create an arraylist and listeterator.and value should be enter through keyboard.

Axcend,

1 3946

write a program to create an vector and listeterator.and value should be enter through keyboard.

Axcend,

1 3869

What will happen if we write code like: try{}catch(exception e)catch(IOException i)

CTS, TCS,

6 11199

How could Java classes direct program messages to the system console, but error messages, say to a file?

2 9281

Is Java Class Threadsafe ????? How to make Java class Thread safe??

Cognizant,

2 7962

why java does not have operator overloading?

2 5848

difference between java ,c#&java,c++

3 5719

What is diffrance between FINALIZE() & FINALLY ?

Infosys,

2 5242

how we can write the string concatenation program in java.

3 6920

give me the answer of this code class A extnds String This code we can write r not in Java? Explain?

4 6301

is set interface synchronized by default???

Manhattan,

2 7860

1.IN CASE OF DYNAMIC METHOD DISPATCH WHY WE USE REFERENCE VARIABLE,WE CAN USE THE DIFFERENT DEFINED OBJECT DIRECTLY TO ACCESS THE DATA MEMBER AND MEMBER FUNCTION OF THAT RESPECTIVE CLASS?WHAT IS THE MAIN FUNCTION OF "REFERENCE VARIABLE" HERE?

TCS,

2 4961

who can i handle multiple client in RMI

1900

what is difference betwenn Access Specifier and Access Modifier ????

2 4992

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Un-Answered Questions { Core Java }

What are the types of methodology?

1106

What is the use of parse function in java?

986

What's the purpose of using break in each case of switch statement?

983

What do you mean by compiler?

1047

What is substring 1 in java?

1167

What is struts in java?

1044

Do I need java for windows 10?

1050

Who is founder of java?

999

Can final class have constructor?

929

How many types of array are there?

1011

What is reflexive association?

1804

What is internal iteration in java se 8?

1202

What is the purpose of main function in java?

1030

What is the size of integer?

1094

How does regex work?

969

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