How to delete every 2nd character in a string?

Question

How to delete every 2nd character in a string?

For example:

3030313535333635  -> 00155365
3030303336313435  -> 00036145
3032323437353530  ->         


        

Answer 1

String input = "3030313535333635";
String result = "";
for(int i = 1; i < 16; i +=2 )
{
    result += input[i];
}