Switch always runs the same case statement Xcode 5

Question

So I have a random word generator that uses a switch to randomly assign a word to a variable.

However, after some testing, I have discovered that it always runs 'case 2' and never case 0, 1 or default.

Here's my code:

int randWord1 = rand() % 2;
switch (randWord1) {
    case 0:
        mainTextView.text = @"1";


    case 1:
        mainTextView.text = @"2";


    case 2:
        mainTextView.text = @"3";

    break;

    default:
    break;
}

Edit:

After having the question closed for typos in the code, I discovered that the issue was that I had forgotten to add a break; statement after each case X: statement.

Answer 1

this is what you are missing:

Case 0 {
mainTextView.text = @"1";
break;
}

Case 1 {
mainTextView.text = @"2";
break;
}

Case 2 {
mainTextView.text = @"3";
break;
}
Default:

Notice the break in each Case x.

In C, each case will execute if you don't put proper break statements before the next Case. In your situation, since Case 2 is the last case with any executable statements in it, you will always see mainTextView.text being set to 3. If, for sake of argument you had

Default: {
mainTextView.text = @"foo";
break;
}

you would have seen foo printed every time because there was no break after Case 2: