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

Core Java Interview Questions

Questions Answers Views Company eMail

Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?

Rolta, TCS,

1 8202

What will be the output of the program? public class Test { public static void main(String args[]) { ArrayList list = new ArrayList(); list.add("2"); list.add("3"); list.add("4"); list.add("5"); System.out.println("size :"+list.size()); for(int i=0;i

Rolta,

5 8687

JVM is platform independent or depeneded?

7 9974

what is type of statement in jdbc connection?

3 5543

What are the types of classes in java?

HCL,

4 9459

What is the difference between interpreter and compiling ?

TCS,

2 4515

What is the difference between interpreter and compiling ?

TCS,

7 9536

what is platform

i3 Solutions,

2 4491

what is platform native code

i3 Solutions,

2 5620

what is language and it responsibilities

1 3482

what is translator and it types

1 3592

what are the application of compiler and interpreter for source program

2 4794

what is platform dependent translation and platform dependent programming language

2 4250

what is net based application and its types

1 3649

justify c is portable

1 3750

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Un-Answered Questions { Core Java }

Can a class be declared as protected?

1063

What do you mean by inner class in java? Explain

1123

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

1117

Which collections are thread safe in java?

963

What is the purpose of stub and skeleton?

1089

What is purpose of applet programming?

1244

What is a buffer in computer?

1065

What are recursive functions?

1105

Differentiate between nested and inner class in java.

1050

What is ph and buffers?

1051

How do you define a variable?

995

Differentiate between static and non-static methods in java.

1100

Can an interface have a class?

1047

Is set ordered in java?

1038

Can we access instance variables within static methods ?

1158

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