Core Java Interview Questions
Questions Answers Views Company eMail

What is a hashmap used for?

674

What is the new line character?

586

Where is the find and replace?

552

What is string pooling concept?

576

What is parseint?

551

Does substring create a new object?

543

What is charat ()?

546

What is the r character?

601

How do you declare a variable?

644

What does int argc char * argv [] mean?

543

How do you change an int to a string?

568

How do you escape a string?

520

What is difference between filereader and bufferedreader?

544

What does indexof mean?

549

What is the use of bufferedreader?

562


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Un-Answered Questions { Core Java }

Do we need to manually write Copy Constructor?

621


When will you define a method as static in Java?

590


Which way a developer should use for creating thread, i.e. Sub classing thread or implementing runnable.

539


Is 0 true or false in java?

533


What is set in java?

550






What do you mean by formatting?

565


Does google use java?

560


How do you replace all in word?

545


What is difference between string and stringbuffer?

509


What is the use of conditional statement?

576


How to make a non daemon thread as daemon?

571


What are daemon Threads in java?

633


How do you call a reference in java?

539


Can a class have multiple constructors?

556


What are methods and how are they defined?

617