QUESTION 1

If the array myArray is declared as int[ ][ ] myArray = {{2,3},{3,4},{4,5}} How many rows and columns does it have?

a.		2 rows, 3 columns
b.		3 rows, 2 columns
c.		1 row, 3 columns
d.		3 rows, 1 column

QUESTION 2

If the array myArray is declared as

int[][] myArray = {{2,3},{3,4},{4,5}}

What is the value of myArray[1][1]?

a.2

b.5

c.3

d.4

QUESTION 3

If the array myArray is declared as

int[][] myArray = {{2,3,4,5},{3,4,5,6},{4,5,6,7}}

What is the value of myArray.length?

QUESTION 5

If the array myArray is declared as

int[][] myArray = {{2,3},{3,4,5,6},{4,5,6}}

What is the value of

myArray[1].length

QUESTION 7

Consider the following segment of Java code. What will be the output?

String cat = "Cat";

System.out.println(cat.charAt(1));

changeCat(cat);

System.out.println(cat.charAt(1));

-----------------------------------

public static void changeCat(String dog) {

dog = "Cut";

}

a.Cat

Dog

b.u

a

c.a

u

d.a

a

QUESTION 8

Assertions are used during --?-- and exceptions are used during --?--.

a.running of the program; compilation of the program

b.compilation of the program; running of the program

c.program execution for users; program development

d.program development; program execution for users

QUESTION 9

Suppose in the following program segment, x is supposed to be less than 5. Which of the following is the correct code for so that an exception is thrown if that is not the case:

if (! x<5)

a.assert (x<5):"x must be < 5";

b,throw new IllegalArgumentException("x must be < 5");

c.throw an IllegalArgumentException("x must be < 5");

d.x = new IllegalArgumentException("x must be < 5");

QUESTION 10

Exceptions in Java are

a.Objects

b.Primitives

c.Never encountered by the programmer.

d.Applications