Newbie Java - IndexOf() problem

[john]

Can anyone tell me how to use the indexOf() function to count the
number of occurences of a specified character in a user defined
string.

Any help would be most appreciated.

John

 

[Jeffrey Palm]

Can anyone tell me how to use the indexOf() function to count the
number of occurences of a specified character in a user defined
string.

Any help would be most appreciated.

John

public class Count {
public static void main(String[] args) {
if (args.length == 0) args = new String[]{"abbcccdddeeee"};
final char C = 'c'; // we're counting c's
for (int i = 0; i < args.length; i++) {
String str = args;
System.out.println(count(C,str) + " " + C + " in '" + str + "'");
}
}
static int count(char c, String str) {
if (str == null) return 0;
int cnt = 0;
for (int i = 0;; cnt++) {
if ((i = str.indexOf(c,i)+1) == 0) break;
}
return cnt;
}
}

 

[Christophe Vanfleteren]

Can anyone tell me how to use the indexOf() function to count the
number of occurences of a specified character in a user defined
string.

Any help would be most appreciated.

John

What was wrong with all the answer that already have been given to you?

 

[john]

What was wrong with all the answer that already have been given to you?

Hi Christophe, there's nothing at all wrong with your answer, things
have just got mixed up, nothing more.

Many thanks for your kind assistance.