Intro to C# Programming

What is method overloading?

A. When you have two or more methods with different names that perform the same task
B. When you have one method that does many different things
C. When you have two or more methods with the same name and different signatures
D. When you have two methods with the same name and signature in two different classes

Which of the following method headers takes no parameters and does not return a value?

A. public static void MyMethod()
B. public static MyMethod(void)
C. public static void MyMethod()
D. public static MyMethod()

Which of the following lines of code will correctly call on the void method named Unknown, which takes no parameters?

A. int value = Unknown(void);
B. Unknown();
C. Unknown(void);
D. int value = Unknown();

If you need to get two values back from a method, what can you do?

A. Nothing. There is no way to get two values out of a method.
B. Write an overloaded method.
C. Write a void method and pass the variables by reference.
D. Have two return statements in the method body.

If you want to allow a method to change the contents of a variable, how do you need to pass it?

A. By value
B. By reference
C. By memory
D. By address

Which of the following is the inequality relational operator?

A. <>
B. ==
C. !=
D. ><

Which of the following statements is true regarding the And logical operator?

A. The And operator acts on only one Boolean condition
B. For an expression with the And operator to result in true, both conditions must evaluate to true
C. For an expression with the And operator to result in true, either the first condition or the second condition must evaluate to true
D. For an expression with the And operator to result in true, neither condition may evaluate to true

In C#, all of your conditions must evaluate to which of the following?

A. Valid or invalid
B. OK or not OK
C. Yes or no
D. True or false

Which of the following statements regarding the selection structure is true?

A. To use a selection statement, you must have both an if statement and an else clause
B. To use a selection statement, you can have an if statement without an else clause
C. To use a selection statement, you can have an else clause without an if statement
D. When using the selection structure, the else clause can come before the if statement

Which of the following if statements is the same as the following? if (!(a==b))

A. if (a!=b)
B. if (a<>b)
C. if (a==b)
D. if (b==a)

Which of the following function calls will correctly test the string variables s1 and s2 to see if they are the same?

A. Compare.String("s1", "s2")
B. Compare.String(s1, s2)
C. String.Compare(s1, s2)
D. String.Compare("s1", "s2")

Which of the following functions calls will correctly test the string variables 's1' and 's2' to see if they contain the same letters, ignoring their case (uppercase letters are treated as being equal to lowercase letters)?

A. String.Compare(s1, s2, false)
B. String.Compare(s1, s2, true)
C. String.IgnoreCase(s1, s2)
D. String.Compare(s1, s2, ignore)

Which of the following is correct regarding nested if statements

A. It is not legal to put an if statement inside another if statement
B. You can only put an if statement inside the true path of another if statement
C. You can put an if statement either the true or false path of another if statement
D. You can only put an if statement inside the false path of another if statement

If the expression used in the switch statement is the int variable name 'age,' which of the following case clauses is valid?

A. case 9
B. case "9"
C. case '9'
D. case == 9

Which keyword is used to direct the computer to a group of code to be executed if non of the other cases match in a switch statement?

A. other
B. default
C. break
D. else

Which of the following while statements will stop the loop when the value in the number variable is greater than the number 20?


A. while(number > 20)
B. while(number < 20)
C. while(number >= 20)
D. while(number <=20)

What is displayed after executing the following code statement?

for(a = 1; a < 5; a++)
Console.Out.Write(a);

A. 11111
B. 1111
C. 1234
D. 12345

Which loop structure would be best for a program that will calculate the sum of the first 100 integers?

A. A while loop
B. A for loop
C. A do loop
D. Either of the pretest loops

What is the term used to describe a value that signals the computer to stop the loop?


A. A sentinel value
B. A stopping value
C. A finishing value
D. An ending value

What kind of variable used in a loop is usually updated by a value that varies?

A. An accumulator variable
B. A sentinel variable
C. A varying variable
D. A counter variable