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For Each loop in java?

Hi,

How do you write a foreach loop in java? I' have the below:

for (int i =0; i < categoryId.length; i++)

I presume it would be more efficient etc to use a for each construct if it exists in java?

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Ajay-Singh

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bowemc

ASKER

brilliant!

I had tried that but had for(int id : categoryId) and it wouldn't compile. Clearly I shouldn't have had a space between id and my ':'

I'm setting a stored proc within my loop like so:

proc.setInt(3, categoryId[id]);

is this ok or do I need something like : proc.setInt(3, categoryId[id].value);

Thanks

ysnky

for each statement need java 1.5 or above

categgoryId must be int array;

a simple sample;
int[] categgoryId = {1, 2, 5};

for(Integer id: categgoryId) {
System.out.print(id + ", ");
}

keyurkarnik

The space DOES NOT matter!!

for(int id: categgoryId)
{
}

and

for(int id : categgoryId)
{
}

both will work absolutely fine.

Also, due to the autoboxing feature of Java 5.0, the categoryId can be either an Integer array or int array or List<Integer> or any collection of Integer.

>> s this ok or do I need something like : proc.setInt(3, categoryId[id].value);

if categoryId is an array of int or Integer, you can just use categoryId[i] (again thanks to autoboxing - i.e auto type casting )

If categoryId is a List, you need to do somehting like categoryId.get(i);

You will NOT need to do categoryId[i].value in any case!!