Home
Current Affairs January 2024

What is the correct answer?

4

Which of the following will produce a value of 10 if x = 9.7?

A. floor(x)

B. abs(x)

C. rint(x)

D. round(x)

Correct Answer :

D. round(x)


Related Questions

What is the correct answer?

4

The check box group class is a subclass of the component class.

A. True

B. False

What is the correct answer?

4

With javadoc, which of the following denotes a javadoc comment?

A. //#

B. /*

C. /**

D. //**

What is the correct answer?

4

In the code below, what data types the variable x can have?

A. byte b1 = 5;

B. byte b2 = 10;

C. x = b1 * b2;

D. int short

What is the correct answer?

4

Which of the following control expressions are valid for an if statement?

A. an integer expression

B. a Boolean expression

C. either A or B

D. Neither A or B

What is the correct answer?

4

Given the code
String s = new String("abc");
Which of the following calls are valid?

A. s.toUpperCase()

B. s.append("xyz")

C. s.setCharAt(1<'A')

D. all of the above

What is the correct answer?

4

Objects are passed to a method by use of call-by-reference.

A. True

B. False

What is the correct answer?

4

What does the following line of code do?
TextField text=new TextField(10);

A. Creates text object that can hold 10 rows of text.

B. Creates text object that can hold 10 columns of text.

C. Creates the object text and initializes it with the value 10.

D. The code is illegal.

What is the correct answer?

4

It is perfectly legal to refer to any instance variable inside of a static method.

A. True

B. False

What is the correct answer?

4

The keywords reserved but not used in the initial version of Java re:

A. Synchronized

B. Boolean

C. union

D. goto

What is the correct answer?

4

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

A. True

B. False

What is the correct answer?

4

Which of the following are not keywords?

A. NULL

B. Implements

C. Protected

D. None of the above

What is the correct answer?

4

We can add more than one class(es) at the time of compilation Java Beans.

A. True.

B. False.

What is the correct answer?

4

A string object can not be modified after it is created.

A. True

B. False

What is the correct answer?

4

All methods in an abstract class must be declared abstract.

A. True

B. False

What is the correct answer?

4

Which javadoc tag is used to denote a comment for methods parameters?

A. @method

B. @parameter

C. @argument

D. @param

What is the correct answer?

4

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

A. True

B. False

What is the correct answer?

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

What is the correct answer?

4

Any class may be inherited by another class in the same package.

A. True

B. False

What is the correct answer?

4

It is an error if a class with one or more abstract methods is not explicitly declared abstract.

A. True

B. False

What is the correct answer?

4

A package is a collection of

A. classes

B. interface

C. editing tools

D. classes and interfaces

What is the correct answer?

4

Which of the following will produce a value of 10 if x = 9.7?

A. floor(x)

B. abs(x)

C. rint(x)

D. round(x)

What is the correct answer?

4

Which of the following will produce a value of 22 if x=22.9:

A. Ceil(x)

B. Round(x)

C. Rint(x)

D. Abs(x)

What is the correct answer?

4

When we implement an interface method, it should be declared as public.

A. True

B. False

What is the correct answer?

4

Submit button always fires doPost(...)

A. True

B. False

What is the correct answer?

4

Which of the following string can be used as mode string for creating a RandomAccessFile object?

A. "rw"

B. "wr"

C. "0"

D. 'w''

What is the correct answer?

4

DriverManager.getConnection("jdbc:odbc:dsn_name") method does not depend on the class.forName(...) method.

A. True.

B. False.

What is the correct answer?

4

Which of the following methods can be used to change the size of a
size() *
resize()

A. component

B. dimension()

C. setSize()

D. size()

What is the correct answer?

4

Consider the following statements:
int x = 10, y = 15; 
x = ((x < y) ? (y + x) : (y - x);

What will be the value of x after executing these statements?

A. 25

B. 15

C. 5

D. Error can't be executed.

What is the correct answer?

4

An EJB is a server-side component that encapsulates the business logic of an application

A. True

B. False

What is the correct answer?

4

When present, package must be the first no comment statement in the file.

A. True

B. False