1. Which one of the following is NOT a correct arithmetic expression?

A. alpha

B. (alpha / momentum) - 12.4

C. alpha ( / momentum - 12.4 )

D. ((alpha / momentum) - 12.4)

2. What is an operand?

A. Another name for number.

B. Another name for integer.

C. One of the arithmetic symbols like *, +, -, and /.

D. A value that is acted upon by an operator.

3. Assume the following declarations:

short  a=12 ;
int    b=33 ;

float  x = 2.3;
double y = 3.14;

Which one of the following expressions will NOT be evaluated using double precision floating point?

A. a + x

B. 1.5 + 8.6

C. a + b

D. x / y

4. What does the following program output?

class question4
{
  public static void main ( String[] args )
  {
    int totalCost = 6;    
    int items     = 12;
    System.out.println("cost per item: " + totalCost/items );
  }
}

A. cost per item: .5

B. cost per item: 0

C. cost per item: 1

D. cost per item: +6/12

5. What is the result of evaluating the following expression?

( 1/2 + 3.5) * 2.0

A. 8.0

B. 8

C. 7.0

D. 0

6. What is the result of evaluating the following expression?

-32 / 6

A. -2

B. -5

C. -5.3333

D. +6

7. What is an expression?

A. The same thing as a statement.

B. An expression is a list of statements that make up a program

C. An expression is a combination of literals, operators, variables, and parentheses used to calculate a value.

D. An expression is a number expressed in digits.

8. Given the following expression:

(a - x)/(13 - z)

Which of the following is NOT a subexpression?

A. (a - x)

B. (13 - z)

C. a - x

D. x ) / (13

9. What is the value of

-32 % 6

A. 5

B. -5

C. 2

D. -2

10. Which of the following declarations works for the constant pi (assume that the numerical value is correct)?

A. final pi = 3.14159265358979 ;

B. final double pi = 3.14159265358979 ;

C. constant double pi = 3.14159265358979 ;

D. double pi = 3.14159265358979 ;

The number you got right: Percent Correct: Letter Grade:

ශිල්ප 64

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