Chapter 5
What will the following code display? int number = 0; cout << number++ << endl;
0
What will the following code display? int number = 0; number++; --number; cout << number << endl;
0
When the following code executes what will be displayed? int num1, num2, result; for (num1 = 1, num2 = 1; num1 <= 3; num1++, num2++) { result = num1 - num2; } cout << result << endl;
0
When the following code executes, how many times will I love to code! be displayed? int number = 10; while (number < 10) { cout << "I love to code!\n"; number++; }
0
What will the following code display? int number = 0; number++; cout << number << endl;
1
What will the following code display? int number = 0; cout << ++number << endl;
1
What will the following code display? int x = 0; if (++x == 1) cout << 1 << endl; else cout << 0 << endl; return 0;
1
What will the following code display? int number = 4; int result = 2 * ++number; cout << result << endl;
10
What will the following code display? int number = 0; number++; ++number; cout << number << endl;
2
What will the following code display? int number = 4; int result = 2 * number++; cout << result << endl;
8
In what situation should you use the for loop instead of the while or do-while loop? The loop requires an initialization. The loop uses a false test expression to stop. The loop performs an increment at the end of each iteration. All of these situations.
all of these situations
A loop that repeats a specific number of times is known as a:
count-controlled loop
Because the for loop tests its test expression after it performs an iteration, it is a posttest loop.
false
Only increment statements may be used in the update expression of a for loop.
false
The while loop is a good choice for repeating a menu.
false
This loop is specifically designed to initialize, test, and update a counter variable.
for
If a loop does not have a way of stopping, it is called:
infinite loop
When the following code executes, how many times will "Programming is awesome!" be displayed? int number = 3; while (number > 0) cout << "Programming is awesome!" << endl; number--; return 0;
infinitely
Each repetition of a loop is known as this:
iteration
This is a control structure that causes a statement or group of statements to repeat.
loop
In the following code, which variable is the counter? const int MAX_VALUE = 10; int number = 0; int result = 0; while (number < MAX_VALUE) { result = number * 2; cout << result << endl; number++; }
number
The while loop is known as this, which means it tests its expression before each iteration.
pretest loop
A counter is a variable that is regularly incremented or decremented each time a loop iterates.
true
All modifications of the for loop's counter variable should take place in the update expression, which is automatically executed at the end of each iteration.
true
An important characteristic of the while loop is that the loop will never iterate if the test expression is false to start with.
true
In general, there are two categories of loops: conditional loops and count-controlled loops.
true
In most cases, loops must contain within themselves a way to terminate.
true
It is possible for the user to determine the values that will be used in the initialization and test expressions of a for loop.
true
It is possible to execute more than one statement in the initialization expression and the update expression of a for loop.
true
The do-while loop is a posttest loop. This means it does not test its expression until it has completed an iteration.
true
The do-while loop must be terminated with a semicolon.
true
The programming style you should use with the while loop is similar to that of the if statement.
true
The while loop has two important parts: (1) an expression that is tested for a true or false value, and (2) a statement or block that is repeated as long as the expression is true.
true
When a variable is defined in the initialization expression of a for loop, the scope of the variable is limited to the loop.
true
This type of loop allows the user to decide the number of iterations.
user-controlled loop
