Final Exam Information

What must be included at the top of a Java program to use a Scanner for user input?

• import java.util.Scanner;

• package java.util.Scanner;

• include java.util.Scanner;

• using java.util.Scanner;

Which package in Java contains the Scanner class?

• java.lang

• java.util

• java.io

• java.net

What is the purpose of the Java code 'Scanner input = new Scanner(System.in);'?

• To create a file

• To print a message to the console

• To read input from the user

• To close a program

Which method is used to read a double value from the user in Java?

• nextLine()

• nextDouble()

• nextInt()

• nextBoolean()

What will the output be if the user enters '5.5' after the statement 'System.out.println("Enter the radius: ");' is executed?

• Enter the radius: 5.5

• Error

• 5.5

• Enter the radius:

What does the "+=" operator do in programming?

• Multiplies and assigns the value

• Divides and assigns the value

• Adds and assigns the value

• Subtracts and assigns the value

Which operator is used for division assignment?

• %=

• *=

• -=

• /=

What is the result of using the operator "%=" when applied as "i %= 8" if the initial value of i is 10?

• 2

• 1.25

• 80

• 18

What is the output of the statement System.out.print(i += 5); if int i = 5?

• A) 5

• B) 10

• C) 0

• D) 15

What is the result of the operation j *= 2; if int j = -2?

• A) 0

• B) 1

• C) -4

• D) 4