How could I use of the loop for?

Hullo! Please, I would like to know how could I change that code using the new loop for(that who has the form for(....... : ...). At least I would like to know how does it go, because I've heard It's very useful.

The code I would like to change is:

.......

Iterator<Long> i = results.iterator();

long firstY = i.next();

long firstX = 1;

int n = 2;

while (i.hasNext()) {

long secondY = i.next();

long secondX = n;

papel.linea(firstX, firstY, secondX, secondY, Color.BLUE);

n++;

firstY = secondY;

firstX = secondX;

.................

I would be very grateful if you could teach me how to change it. Thank you!!

Message was edited by:

julipi_90

[763 byte] By [julipia] at [2007-10-2 20:59:00]

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# 1

for(int n = 2;i.hasNext();n++) {

long secondY = i.next();

long secondX = n;

papel.linea(firstX, firstY, secondX, secondY, Color.BLUE);

}

BIJ001a at 2007-7-13 23:43:45 >

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# 2

The OP asked for the new for loop (aka for-each), not the old for loop. However, the code doesn't seem to be a very good match for the new for loop because of the initial step.

In general, the new for-loop would replace the Iterator:for(long firstY : results) {

// do stuff

}

However, the "do stuff" part in this case would be a non-obvious translation of what you already have. I doubt adding the for-each loop would make your code more concise or clearer (which is the only advantage of the new for).

I would recommend getting rid of the int n though, it doesn't seem to serve any purpose.

Herko_ter_Horsta at 2007-7-13 23:43:45 >

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How could I use of the loop for?

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