frequency of occurence of a letter in a string

[manish007g]

please help!!!!
give me some good logic to count occurence of different letters in a array ...

[Fubarable]

How would you do this on paper? Once you work that out, you'd use the same logic in your Java program.

[manish007g]

bt how can i run a loop for A to Z since its not working with ascii codes

[Fubarable]

bt how can i run a loop for A to Z since its not working with ascii codes

You wouldn't. You'd loop through the char's found in the String. You could have an int array that represents your 'A' through 'Z' and if an 'a' or 'A' is encountered in the String increment your 0th array element by one. Note that you can do arithmetic on characters. So 'B' - 'A' equals 1, and 'C' - 'A' equals 2. Just be sure to get your case right.

[manish007g]

thanx... its brilliant idea :)