Give me example of derived data types.

581

Can we use a default constructor of a class even if an explicit constructor is defined?

642

Explain about interthread communication and how it takes place in java?

531

What will be the initial value of an object reference which is defined as an instance variable?

627

What are void methods?

561

What is adapter in java?

506

Is java an open source?

515

What is variable argument in java?

553

Why is stringbuffer faster than string?

480

Explain static nested classes ?

584

What is the advantage of preparedstatement over statement?

550

Write the algorithm to check the number non-leaf nodes in a tree.

576

Which data type is a class in java?

565

What are the ways to instantiate the class class?

591

What is difference between core java and java ee?

460