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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 7406

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 6927

JVM is platform independent or depeneded?

 7 7576

what is type of statement in jdbc connection?

 3 4291

What are the types of classes in java?

HCL,

4 7831

What is the difference between interpreter and compiling ?

TCS,

2 3391

What is the difference between interpreter and compiling ?

TCS,

7 7074

what is platform

i3 Solutions,

2 3468

what is platform native code

i3 Solutions,

2 4384

what is language and it responsibilities

 1 2685

what is translator and it types

 1 2715

what are the application of compiler and interpreter for source program

 2 3676

what is platform dependent translation and platform dependent programming language

 2 3193

what is net based application and its types

 1 2628

justify c is portable

 1 3091

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Un-Answered Questions { Core Java }

When object is created and destroyed?

638

How are variables stored in memory?

572

What do you understand by soft reference?

582

What is difference between == equals () and compareto () method?

528

Given a singly linked list, find the middle of the list in a single traversal without using temporary variable.

608




What is the difference between synchronized and synchronized block?

497

Is alive in java?

502

What is thread safe in java?

544

What is the final access modifier in java?

610

Describe the Big-O Notation.

613

How to store image in arraylist in java?

508

Why does java not support pointers?

547

Explain differences between collection api and stream api?

610

Is it possible to override private or static method in java?

540

What are the types of java languages?

515

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