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What is the correct answer?

4

Connection, Statement are interfaces and ResultSet is a class.

A. True.

B. False.

Correct Answer :

B. False.


Related Questions

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4

Message-Driven beans act as a listener for the Java Message Service API, processing messages synchronously

A. True

B. False

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4

EJBs can be of the following type(s)
None of the above

A. Entity Bean

B. Session Bean

C. Message-driven bean

D. All of the above

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4

Which of the following are keywords?

A. integer

B. default

C. Boolean

D. Object

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4

For all insert, update, delete, query operations on a database, ResultSet object creation is mandatory.

A. True.

B. False.

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4

A Java monitor must either extend thread class or implement Runnable interface.

A. True

B. False

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4

JdbcOdbcDriver is an object of Object class

A. True

B. False

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4

Which of the following methods can be used to remove a component from the display?

A. remove()

B. desappear()

C. hide()

D. move()

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4

The default case is always required in the switch selection structure.

A. True

B. False

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4

It is perfectly legal to assign a subclass object to a supper class reference.

A. True

B. False

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4

Which of the following command lines options generates documentation for all classes and methods?

A. -protected

B. -public

C. -private

D. -encoding

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4

What is error in the following class definitions? 
abstract class xy { 
abstract sum(int x, int y) {
}
}

A. class header is not define properly

B. constructor is no defined

C. method is not defined properly

D. no error

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4

Connection, Statement are interfaces and ResultSet is a class.

A. True.

B. False.

What is the correct answer?

4

Which exception is thrown by the read() method of InputStream class?

A. IOException

B. FileNotFoundException

C. ReadException

D. None of the above

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4

What is java -g used for?

A. Using the jdb tool

B. Executing a class with optimization turned off

C. To provided information about deprecated methods

D. Non of the above

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4

forName() is a static factory method

A. True

B. False

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4

Which of the following keywords are used to control access to a class member?

A. default

B. protected

C. interface

D. None of the above

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4

We can over load methods with differences only in their return type.

A. True

B. False

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4

A static class method can be invoked by simply using the name of the method alone.

A. True

B. False

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4

Java always provides a default constructor to a class.

A. True

B. False

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4

It is an error to catch the same type of exception in two different catch blocks associated with a particular try block.

A. True

B. False

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4

The length of a string object 's1' can be obtained using the expression s1.length.

A. True

B. False

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4

In evaluating a logical expression of type 'Boolean expression 1&& Boolean expression 2', both the Boolean expressions are not always evaluated.

A. True

B. False

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4

The setBackground() method is part of the class

A. Applet

B. Component

C. Container

D. Object

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4

The methods wait() and noify() are defined in

A. java.lang.Thread

B. java.lang.Runnable

C. java.lang.Object

D. java.lang.ThreadGroup

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4

All methods in an abstract class must be declared abstract.

A. True

B. False

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4

A package is a collection of

A. classes

B. interface

C. editing tools

D. classes and interfaces

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4

The programmer must explicitly create the system .in and system .out objects.

A. True

B. False

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4

Submit button always fires doPost(...)

A. True

B. False

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4

Give file is a file object, which of the following are legal statements to create a new file.

A. file.create();

B. FileOutputStream fos=new FileOutputStream(file);

C. FileInputStream fis=new FileInputStream(file);

D. all of the above

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4

If a=10 and b= 15, then the statement x =(a>b)?a:b; assigns the value 15 to x.

A. True

B. False