I'm using a mouse event and a for loop, but I cannot get them to work together, I don't see anything here that is much different to the examples so i'm not sure what i'm doing wrong..?

Code:

 

 void mousePressed() {
  int increase = 1;
   currentRow = currentRow+increase;
   currentRow = constrain(currentRow, 0, 200);
   lastLevel = level;
   level = level+5;

   println(time);
  
 for(int i = getHour(); i < 25; );
   clockHoursArray[getHour()] = clockHoursArray[getHour()]+1;
   println(clockHoursArray[12]);
  
}

 

Code:

 for(int i = getHour(); i < 25; );
   clockHoursArray[getHour()] = clockHoursArray[getHour()]+1;
   println(clockHoursArray[12]);
} 

You can't be looking too carefully at the examples...

First off your for loop declaration should be followed by an opening brace '{', not a semi-colon...  Next up it's very unusual not to define some kind of increment on your iterator in the declaration - eg 'i++' being the most common.  You can get away without doing that if you manipulate 'i' within the loop and can be sure it will eventually reach the limit.  If you don't then you'll land up with an infinite loop and that's bad...

TBH you don't appear to have understood the use of a for loop properly.  If you're trying to access values in an array this is a more standard approach:

Code:

for(int i=0; i<myArray.length; i++){
  // use i as an index in the array:
  println(myArray[i]);
} 

Now it may be that you're using getHour() to get the current time and want to then iterate over the remaining hours in the day; in which case you can define i as getHour() to start with (so long as it returns an int); but you then need to access your array with 'i', not getHour(), within the loop.