1. What is the index variable for the element at the first row and first column in array a?

   1. a[0][1]

   2. a[1][0]

   3. a[1][1]

   4. a[0][0]

2. Question 2

   1 Point

   When assigning a literal to a variable of the byte type, if the literal is too large to be stored as a byte value, it _____________.

   1. causes underflow

   2. causes compile error

   3. causes overflow

   4. no error

3. Question 3

   1 Point

   To declare a constant MAX_LENGTH inside a method with value 99.98, you write

   1. final float MAX_LENGTH = 99.98;

   2. final MAX_LENGTH = 99.98;

   3. double MAX_LENGTH = 99.98;

   4. final double MAX_LENGTH = 99.98;

4. Question 4

   1 Point

   -25 % 5 is ______?

   1. 5

   2. 0

   3. 4

   4. 1

5. Question 5

   1 Point

   The __________ method returns a raised to the power of b.

   1. Math.pow(a, b)

   2. Math.pow(b, a)

   3. Math.exponent(a, b)

   4. Math.power(a, b)

6. Question 6

   1 Point

   Suppose a Scanner object is created as follows:

   Scanner input = new Scanner(System.in);

   What method do you use to read a real number?

   1. input.double();

   2. input.nextdouble();

   3. input.Double();

   4. input.nextDouble();

7. Question 7

   1 Point

   When you invoke a method with a parameter, the value of the argument is passed to the parameter. This is referred to as _________.

   1. method invocation

   2. pass by value

   3. pass by reference

   4. pass by name

8. Question 8

   1 Point

   A Java character is stored in __________

   1. two bytes

   2. four bytes

   3. one byte

   4. three bytes

9. Question 9

   1 Point

   How many elements are array matrix (int[][] matrix = new int[5][5])?

   1. 14

   2. 10

   3. 20

   4. 25

10. Question 10

    1 Point

    What is y displayed in the following code?

    public class Test {

    public static void main(String[] args) {

    int x = 1;

    int y = x++ + x;

    System.out.println("y is " + y);

    }

    }

    1. y is 1

    2. y is 4

    3. y is 3

    4. y is 2

11. Question 11

    1 Point

    The signature of a method consists of ____________.

    1. parameter list

    2. method name

    3. return type, method name, and parameter list

    4. method name and parameter list

12. Question 12

    1 Point

    What will be displayed when the following code is executed?

    int number = 6;

    while (number > 0) {

    number -= 3;

    System.out.print(number + " ");

    }

    1. 3 0

    2. 3 0 -3

    3. 6 3

    4. 6 3 0

13. Question 13

    1 Point

    How many times will the following code print "Welcome to Java"?

    int count = 0;

    while (count < 10) {

    System.out.println("Welcome to Java");

    count++;

    }

    1. 11

    2. 10

    3. 0

    4. 9

14. Question 14

    1 Point

    Each time a method is invoked, the system stores parameters and local variables in an area of memory, known as _______, which stores elements in last-in first-out fashion.

    1. an array

    2. a heap

    3. a stack

    4. storage area

15. Question 15

    1 Point

    "abc".compareTo("aba") returns ___________.

    1. 2

    2. -1

    3. 1

    4. -1

16. Question 16

    1 Point

    Suppose x is 1. What is x after x += 2?

    1. 3

    2. 2

    3. 4

    4. 1

17. Question 17

    1 Point

    Assume x = 4, which of the following is true?

    1. x != 5

    2. x == 5

    3. !(x == 4)

    4. x != 4

18. Question 18

    1 Point

    Which of the following is the correct statement to return JAVA?

    1. "Java".toUpperCase("Java")

    2. String.toUpperCase("Java")

    3. toUpperCase("Java")

    4. "Java".toUpperCase()

19. Question 19

    1 Point

    The expression "Java " + 1 + 2 + 3 evaluates to ________.

    1. Java6

    2. illegal expression

    3. Java123

    4. Java 123

20. Question 20

    1 Point

    What is the exact output of the following code?

    double area = 3.5;

    System.out.print("area");

    System.out.print(area);

    1. 3.53.5

    2. area 3.5

    3. area3.5

    4. 3.5 3.5