luinzi
asked on
Analysing Strings ....
Hi there,
I am Analysing a string and I want to see how many times a certain substring (key word) appears, and print it each time it appears within the string, stating its appearance time.
ie. I'm looking for the substring an in the String:
"qwhhdswranhirgankrtijfano
how could I search this string to show an appears 5 times??
I am Analysing a string and I want to see how many times a certain substring (key word) appears, and print it each time it appears within the string, stating its appearance time.
ie. I'm looking for the substring an in the String:
"qwhhdswranhirgankrtijfano
how could I search this string to show an appears 5 times??
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ASKER
That works fine ...thanks
public static void main(String[] args){
if (args.length < 2){
System.out.println("Usage : CheckString string1 string2");
System.exit(0);
}
String s1 = args[0];
String s2 = args[1];
int i = -1;
int n = 0;
while (!((i = s1.indexOf(s2,i+1)) == -1)){
System.out.println(s2 + " occurs in " + s1 + " at position " + i);
n++;
}
System.out.println(n + " occurences.");
}
}