public class Exercise7_5 {  public static void main(String[] args) {    int[] counts = count("SSN is 343 32 4545 and ID is 434 34 4323");    for (int i = 0; i < 10; i++)      System.out.println(i + " " + counts[i]);  }  public static int[] count(String s) {    int[] counts = new int[10];    for (int i = 0; i < s.length(); i++) {      if (Character.isDigit(s.charAt(i)))        counts[s.charAt(i) - '0']++;    }    return counts;  }}