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Core Java Interview Questions
Questions Answers Views Company eMail

What is a hashmap used for?

 690

What is the new line character?

 610

Where is the find and replace?

 567

What is string pooling concept?

 598

What is parseint?

 568

Does substring create a new object?

 567

What is charat ()?

 562

What is the r character?

 620

How do you declare a variable?

 659

What does int argc char * argv [] mean?

 559

How do you change an int to a string?

 581

How do you escape a string?

 535

What is difference between filereader and bufferedreader?

 559

What does indexof mean?

 569

What is the use of bufferedreader?

 580

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Un-Answered Questions { Core Java }

Can we extend singleton class in java?

581

What is java virtual machine? Explain

603

How would you use Bubble Sort to sort the number of elements?

623

Is main is a keyword?

623

what are abstract functions?

602




Why packages are used?

570

what is the final keyword denotes in java?

620

What is empty string literal in java?

595

What is thread count in java?

579

How is string stored in java?

599

Do I need java on my computer?

562

How can we create objects if we make the constructor private ?

575

State one difference between a template class and class template.

658

why are wait(), notify() and notifyall() methods defined in the object class? : Java thread

584

Is logger a singleton?

557

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