While loops and for loops: Correct Solution


Part 1

Translate the following while loop into a for loop:

long o = se;
while (o <= sio) {
    o--;
    cisa(o);
}

Solution

for (long o = se; o <= sio; o--) {
    cisa(o);
}

Part 2

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

Declare a variable named po of type int, initialized to od. Then, until po is less than or equal to nelhi, divide po by 3.

Solution

for (int po = od; po < nelhi; po /= 3) {
    ...
}

Something to double-check in your solution:


Part 3

Consider the following code:

A
B
while (C) {
    D
    if (E) {
        F
        G
        break;
    }
    H
}
I
  1. Assume the loop ends because the test condition of the loop is false on iteration 2. 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 E F G H C D H I
  2. Order:

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

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