[SOLVED] Problems with arrays

[hayjk]

I am new to Java and I am having an issue with an array problem. I need to check the first digit in a String array and if it has a value of 0 or 9, I need to change it to a 1. Below is my code that is trying to do this. What I am having trouble with is populating the new array. Any help would be greatly appreciated.

Code:

for (int i = 0; i < nums.length; i++)
{
prinum[i] = nums[i].substring(5);
char[] temp = prinum[i].toCharArray();
for (int x = 0; x < prinum[i].length(); x++)
{
if (prinum[i].charAt(x) == '9')
{
temp[x] = 1;
}
else if (prinum[i].charAt(x) == '0')
{
temp[x] = 1;
}
}
String newprinum[i] = new String(temp);

[hardwired]

Code:

for (int i = 0; i < nums.length; i++)
{
    prinum[i] = nums[i].substring(5);
    // if the first character is a
    // digit [0 - 9] change it to a "1".
    // This loop will examine every letter
    // in the string "prinum[i]"
    char[] temp = prinum[i].toCharArray();
    for (int x = 0; x < temp.length; x++)
    {
        char c = temp[x];
        if (c == '9' || c == '8' || c == '7' ...)
        {
            temp[x] = 1;
        }
    }
    // Assign the corrected value of temp[x]
    // to "newprinum[i]"
    newprinum[i] = temp[x];

Code:

    // Another possible way to look at it:
    String digits = "0123456789";
    ...
    prinum[i] = nums[i].substring(5);
    String first = prinum[i].substring(0, 1);
    // Is the first letter a digit?
    if(digits.indexOf(first) != -1) {
        // change it to a "1"
        prinum[i] = "1" + prinum[1].substring(1);
    }

[hayjk]

Thanks hardwired. I found an easier way to do it. Here is the code snippet i used.

Code:

for (int i = 0; i < nums.length; i++)
{
prinum[i] = nums[i].substring(6);
firstnum[i] = nums[i].substring(5, 6);
firstnum[i] = firstnum[i].replaceAll("9", "1");
firstnum[i] = firstnum[i].replaceAll("0", "1");

I appreciate your help.

[DonCash]

I edited to put the [code] [/ code] tags round the code to make it easier to read.