When you perform arithmetic operations with operands of different types, such as adding

an int and a float, _____________________.

A. C# chooses a unifying type for the result

B. you must choose a unifying type for the result

C. you must provide a cast

D. you receive an error message

2. Which of the following declares a variable that can hold the word computer?

A. string device = ‘computer’;

B. string device = “computer”;

C. char device = ‘computer’;

D. char device = “computer”;

3. Which of the following C# expressions means, “If itemNumber is not 8 and not 9, add TAX to

price”?

A. if(itemNumber != 8 || itemNumber != 9) price = price +

TAX;

B. if(itemNumber != 8 && itemNumber != 9) price = price +

TAX;

C. if(itemNumber != 8 && != 9) price = price + TAX;

D. two of these

4. What is the output of the following code segment?

int a = 3,

b = 4;

if(a == b)

{

Write(“Black”);

WriteLine(“White”);

}

A. Black

B. White

C. BlackWhite

D. nothing



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