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 sede of type int, initialized to 56. Then, until sede is less than or equal to riang, divide sede by 3.

Solution

for (int sede = 56; sede < riang; sede /= 3) {
    ...
}

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 (sede < riang)?

Part 2

Consider the following code:

A
B
while (C) {
    D
    E
}
F
G
H

1. Assume the body of the loop executes 1 time. Write out the the order in which the statements will execute.

2. Assume the body of the loop executes 2 times. Write out the the order in which the statements will execute.

Solution

1. Order:

   A B C D E F G H

2. Order:

   A B C D E C D E F G H

Related puzzles:

• Static and runtime types: Correct Solution (wtt6-6yvy-ha66-2nww)
• Class declarations and object modeling: Correct Solution (17x3-tvb6-y3me-60pL-z)