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iOS

Posted by Joey LoForti
Joey LoForti
Courses Plus Student 1,864 Points

Ojective-C Loops Quiz

I just somehow completed the loops quiz with a perfect score but I really have no idea what I'm doing. I understood enough to pass the quiz but I have no idea what I'm doing at any useful practical level. Can someone please explain the code below in real english so I can understand it? I appreciate all the help I can get. See below..

 char letters2[] = {'a', 'b', 'c'};
    int z =0;
    while (z < 3) {
        printf("letter %d is %c\n", z, letters2[z]);
        ++z;
Véronique Bellamy
Véronique Bellamy
20,810 Points

Added some markdown code so your code displays better. :)

2 Answers

Charles Massry
Charles Massry
12,253 Points
Charles Massry
Charles Massry
12,253 Points

alright

  1. char letters2[] = {'a', 'b', 'c'}; You are declaring an array of characters.

  2. int z =0; You are declaring an integer 0.

  3. while (z < 3) you are creating a while loop that continues the loop while the condition z < 3 remains true.

  4. printf("letter %d is %c\n", z, letters2[z]); you are printing the integer z and the place in the array that corresponds to the integer for example if z = 0 it will display 'a' and if z = 1 it will display 'b', that is what letters2[z] does.

  5. ++z; You are incrementing z so you do not have what is called an infinite loop and it properly displays the place in the array.

Joey LoForti
PLUS
Joey LoForti
Courses Plus Student 1,864 Points
Joey LoForti
Joey LoForti
Courses Plus Student 1,864 Points

Thank you I appreciate the time you took to explain that.