While loops and for loops: Correct Solution

Part 1

Translate the following natural language description of a loop into a for loop:

Declare a variable named u of type double, initialized to uclo. Then, until u is not equal to crara, add 4 to u.

Solution

for (double u = uclo; u != crara; u += 4) {
    ...
}

Something to double-check in your solution:

• Note that the problem says “until,” not “while.” Did you use the correct operator in the loop’s end condition (u != crara)?

Part 2

Consider the following code:

A
B
while (C) {
    D
    if (E) {
        F
        break;
    }
    G
}
H
I
J

1. Assume the loop ends because the test condition of the loop is false on iteration 1. Write out the the order in which the statements will execute.

2. Assume the loop ends because the test condition of the loop is false on iteration 3. Write out the the order in which the statements will execute.

Solution

1. Order:

   A B C D G H I J

2. Order:

   A B C D E F G C D E F G C D G H I J

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