Question

String s = 000000001;
String e = 009999999;

Convert String 000000001 to Integer 000000001.

I tried doing this with Integer.parseInt

int n = Integer.parseInt(s);

I am getting n = 1, but I want n should have 000000001

for (int ind = Integer.valueOf(s); ind < Integer.valueOf(e); ind++)  {

  String pp = "ggg" + ind; // I want pp should be like this- ggg000000001 and it keep on increasing like   ggg000000002, then ggg000000003 and etc etc.   
}

Answer 1

The integer 000000001 is 1. I can only assume you want to display 1 as 000000001. This is how you do it:

System.out.format("%09d", n);

Here’s a little test:

public static void main(String[] args) throws Exception {
    String s = "000000001";
    int n = Integer.parseInt(s);
    System.out.format("%09d", n);
}

Output:

000000001

FYI System.out.format() is a convenience facade for System.out.println(String.format()), so if you need the String in your code (and don’t want to output it) use:

String s = String.format("%09d", n);

Updated due to question update:

String pp = String.format("ggg%09d", ind);