Question

I have a String[] that looks like this where the first String is aways a property name and the second is the value:

String[] full = { "property1", "value1", "property2", "value2", "property3", "value3" };

I want to split that String[] into two other String[]s like this:

String[] properties = { "property1", "property2", "property3" };
String[] values = { "value1", "value2", "value3" };

Is there any way of doing this programmatically?

PS: The number of property/value Strings in full may vary

Answer 1

The simplest approach would just be:

String[] properties = new String[full.length / 2];
String[] values = new String[full.length / 2];
for (int i = 0; i < properties.length; i++)
{
    properties[i] = full[i * 2];
    values[i] = full[i * 2 + 1];
}

It’s hard to see how you’d be able to do it in a much simpler way than that. You probably want validation to start with that full.length is even.

Any reason for building two arrays instead of (say) a Map<String, String>?