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

Core Java Interview Questions

Questions Answers Views Company eMail

How to invoke external process in java.

555

How the interruptible method gets implemented?

548

What is the use of runnable interface?

599

What is an immutable class?

604

Can you explain inner class.

583

What is the requirement of thread in java?

610

Explain the difference between association, aggregation and inheritance relationships.

546

Difference between java and javascript

578

Difference between vector and arraylist.

573

Difference between linkedlist and arraylist.

580

What are the kinds of polymorphism?

602

How will you load a specific locale?

532

Define a package.

561

How to obtain a performance profile of java program

537

State the difference between creating string as new () and literal.

514

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Un-Answered Questions { Core Java }

hr interview how many minutes asking question

1558

Explain different types of wrapper classes in java?

588

Explain the difference between association, aggregation and inheritance relationships.

546

Explain Basics of OOP Language in java

582

What does java edition mean?

519

How to avoid memory leak in java?

589

What does void * mean?

523

Explain about object oriented programming and its features?

585

How many types of string data types are there?

549

What is multi level inheritance in java?

550

Can we sort set in java?

529

Explain different states of a thread in java?

573

Are maps ordered java?

502

Can you instantiate the math class in Java?

600

Can a method be overloaded based on different return type but same argument type?

539

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