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Java

Explanation of For Loop

Hello fellow peers and teachers, Could you help me explain this for loop?

double p = 0;

for (int m = 10; m > 6; --m) {

 if (m == 7) {

 p += m;
 } 
 else {

 ++p;
 }

}

1 Answer

Steven Parker
Steven Parker
243,266 Points

This is a rather funny little bit of code:

double p = 0;
for (int m = 10; m > 6; --m) {  // starting with 10, count down while m > 6
    if (m == 7) {
        p += m;                 // if m is 7, add it to p
    } 
    else {
        ++p;                    // otherwise just add 1 to p
    }
}

The funniest part is that you can replace the whole thing with just this:

double p = 10;

Where did you see this?

Steven Parker
Steven Parker
243,266 Points

Oh, and to make your posted code look like these samples, use the instructions for code formatting in the Markdown Cheatsheet pop-up below the "Add an Answer" area. :arrow_heading_down:   Or watch this video on code formatting.