Java Program to find frequency of characters

/* Java Program Example - Find Frequency of Character */ import java.util.Scanner; public class Occuerence { public static void main(String args[]) { int ci, i, j, k, l=0; String str, str1; char c, ch; Scanner scan = new Scanner(System.in); System.out.print("Enter a String : "); str=scan.nextLine(); i=str.length(); for(c='A'; c<='z'; c++) { k=0; for(j=0; j<i; j++) { ch = str.charAt(j); if(ch == c) { k++; } } if(k>0) { System.out.println("The character " + c + " has occurred for " + k + " times"); } } } }