Question

Maybe this is a stupid question, but i still wonder

if i use

ArrayList<Integer> Data=new ArrayList<Integer>();
for(int data:Data)
 //some code here
 //print out the iteration times

i want to print out the iteration times (not the execution time)
without using

for int i;i<blahblahblah;i++) output i

for example output

output:
This is iteration times: 1   the data is : blahblahblah
This is iteration times: 2   the data is : blahblahblah
This is iteration times: 3   the data is : blahblahblah

Answer 1

Well this may not be correct asthetically

ArrayList<Integer> Data=new ArrayList<Integer>();
for(int data:Data)
{
   System.out.println( Data.indexOf(data)+1 );
   Data.remove(Data.indexOf(data));//to ensure the index is correct even if there are duplicates
}

since for each loop accesses the elements sequentially it will give you the iteration number = (index + 1)

Edit:
If you can remove the element you can ensure that the duplicates problem will not occur. Or else the traditional for loop is best suited