1. Which of the following code is valid to create a Scanner object? Please keep in mind...
Question:
1. Which of the following code is valid to create a Scanner object?
Please keep in mind the Java coding standard.
A. Scanner String = new Scanner(System.in);
B. Scanner public = new Scanner(System.in);
C. Scanner myScanner = new Scanner(System.in);
D. Scanner reader = new Scanner(System.in);
E. Scanner input = new Scanner(System.in);
2. In the following code, which lines have code that does not adhere to the Java coding standard?
1 public class myProgram {
2 public static void main(String[] args) {
3
4 //declare variables and output text about spaghetti
5 double money = 20.00;
6 final double costOfSpaghetti = 4.95;
7 System.out.println("You want some spaghetti?");
8 System.out.println("Okay. Here's your spaghetti.");
9 System.out.println("Now you have $" + (money-costOfSpaghetti));
10
11 }
12 }
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
G. 7
H. 8
I. 9
J. 10
K. 11
L. 12
M. The entire code adheres to the coding standard.
3. What is the output of the following code?
double myNumber = 123.4567;
System.out.printf("%10.3f", myNumber);
A. 0000123.457
B. 000123.457
C. 123.4570000
D. 0000123.456
E. 123.4560000
F. 000123.456
4. In the following code, which lines have code that does not adhere to the Java coding standard?
1 public class myProgram {
2 public static void main(String[] args) {
3
4 //Declare variables
5 int age = 20;
6 double ageInDogYears = 140;
7
8 //Print out age and age in dog years.
9 System.out.print("I am " + age + "years old.");
10 System.out.print("In dog years, I would be " + ageInDogYears );
11 System.out.print(" years old.");
12 }
13 }
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
G. 7
H. 8
I. 9
J. 10
K. 11
L. 12
M. 13
N. The entire code adheres to the coding standard.
5. In the following code, which lines have code that does not adhere to the Java coding standard?
1 /*
2 * My program prints my name.
3 *
4 *@author Manuel, Nikki
5 *@date January 1, 1900
6 *@bugs No bugs.
7 */
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
G. 7
H. The entire code adheres to the coding standard.
Concepts Of Database Management
ISBN: 9780357422083
10th Edition
Authors: Lisa Friedrichsen, Lisa Ruffolo, Ellen Monk, Joy L. Starks, Philip J. Pratt