Counting occurrences of specific letters in string

I wish did fix the issue. In PHP I am using the following code... , You can use the NSCharacterSet:

NSString *password = @"aas2dASDasd1asdASDasdas32D";
int occurrenceCapital = 0;  
int occurenceNumbers = 0;
for (int i = 0; i < [password length]; i++) {
    if([[NSCharacterSet uppercaseLetterCharacterSet] characterIsMember:[password characterAtIndex:i]])
       occurenceCapital++;

    if([[NSCharacterSet decimalDigitCharacterSet] characterIsMember:[password characterAtIndex:i]])
       occurenceNumbers++;

}

seems to work fine I'm trying to make a unique ID out of some duplicate amounts I have in a spreadsheet. , Try this:

=CHAR(64+COUNTIF($A$1:A1,A1))&A1

Any of those help I am attempting to solve a problem where I create a method that counts the number of occurrences of capital and lowercase ("A" or "a") in a certain string. I have been working on this problem for a week now, and the main error that I am receiving is that "char cannot be dereferenced". Can anyone point me in the correct direction on this Java problem? Thank you. , try a simpler solution

String in = "aaBBdf8k3AAadnklA";
String out = in.replace ("A", "").replace ("a", "");
int lenDiff = in.length () - out.length ();

This might help you You haven't actually said what's going wrong. That makes it hard to be sure what the 'answer' might be. But I'm going to take a crack at it (hey, I need the karma).
Reading your code, there doesn't seem to be anything actually "wrong" with the code (although there are a few things I would do differently). However, there are some rules that assembler must follow if it is going to interact with C. One of the most important is that if you change certain registers, you are responsible for putting them back the way you found them. Your code is breaking this rule.

cmp         dl, ah
je          Increasing
inc         si
jmp         Check

Increasing:
inc         bx
inc         si
jmp         Check

inc         si
cmp         dl, ah
je          Increasing
jmp         Check

Increasing:
inc         bx
jmp         Check

inc         si
cmp         dl, ah
jne         Check

inc         bx
jmp         Check

inc         si      ; Position to next byte
cmp         dl, ah  ; Is this the byte we are counting?
jne         Check

inc         bx      ; Found one
jmp         Check

hop of those help? I'm not sure if this is the best way, but you could use xargs with its -n flag in the following manner:

xargs -n1 < file  | grep ^0$ | wc -l