O'Reilly logo

Learning C# 3.0 by Brian MacDonald, Jesse Liberty

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 5: Branching

Quiz Solutions

Solution to Question 5-1. The if, if…else, and switch statements are used for conditional branching.

Solution to Question 5-2. False. In C#, an if statement’s condition must evaluate to a Boolean expression.

Solution to Question 5-3. The braces make maintenance easier. If you add a second statement later, you are less likely to create a logic error because it is obvious what “block” of statements the if refers to.

Solution to Question 5-4. Either a numeric value or a string can be placed in a switch statement.

Solution to Question 5-5. False. If the statement has no body, you can fall through. For example:

case morning:
case afternoon:
  someAction(  );
  break;

Solution to Question 5-6. Two uses of goto are:

  • To go to a label in your code

  • To go to a different case statement in a switch statement

Solution to Question 5-7. do…while evaluates its condition at the end of the loop rather than at the beginning, and thus is guaranteed to run at least once.

Solution to Question 5-8. The header of a for loop includes the initializer, in which you create and initialize the counter variable; the expression, in which you test the value of the counter variable; and the iterator, in which you update the value of the counter variable. All three parts are optional.

Solution to Question 5-9. In a loop, the continue keyword causes the remainder of the body of the loop to be skipped and the next iteration of the loop to begin immediately.

Solution to Question 5-10. Two ways of creating ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required