CountCharacter.java

import java.util.Scanner;

public class CountCharacter{
	public static void main(String[] args){
		Scanner scn = new Scanner(System.in);
		System.out.print("Enter Name : ");
		String name = scn.nextLine();
		
		int len = name.length();
		int[][] ascii = new int[len][2];
		int in = 0, on = 0, p = 0;

		/* Preprocessing */
		for (p =0;p < len; p++ ){
			ascii[p][0] = (int)name.charAt(p);
			ascii[p][1] = 0;
		}

		CountCharacter H = new CountCharacter(); 

		/* Searching Countting Character */
		H.CounttingCharacter(ascii,len); 
		
		/* Print */ 
		int count = 0;
		for (on = 0;on < len; on++ ){
			if (ascii[on][0] != ' '){ 
				count = H.FormatAscii(ascii,len,on);
				if (count > 0) 
					System.out.println((char)ascii[on][0] + " = " + ascii[on][1]);  
				else 
					if ((char)ascii[in][0] != ' ') 
						System.out.println((char)ascii[on][0] + " = " + ascii[on][1]);  
			} 
		} // for on
		System.out.println(); 
	} // main
	
	public void CounttingCharacter(int ascii[][],int len){
		int on = 0, in = 0;
		for (on = 0;on <  len; on++ ) 
			for (in =0;in < len; in++) 
				if (ascii[on][0] == ascii[in][0]) 
					ascii[on][1]++; 
	}
	
	public int FormatAscii(int[][] ascii,int len,int on){
		int count = 0, in = 0; 
		for (in = on+1; in < len; in++ ){ 
			if (ascii[on][0] == ascii[in][0]){	
				count++;			/* นับตัวที่ซ้ำกัน */
				ascii[in][0] = (int)' ';	/* set ค่าให้เป็น Space */
			}  
		}
		return count;
	} 
}