to accept a sentence and find out how many times the word "the" occurs?

import java.util.*;

class CountSameWords {

public static void main(String[] args) {
int count = 0;
Scanner input = new Scanner(System.in);
System.out.print("Enter string:");
String st = input.nextLine();
String s1 = "the";
StringTokenizer stk = new StringTokenizer(st);
while (stk.hasMoreTokens()) {
String str = stk.nextToken();
if (s1.equalsIgnoreCase(str)) {
count++;
}
}
System.out.println(s1 + "-" + count+" times");
}
}