ECOO Cryptarithm Encrypter

Sol4.java

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Sol4 {

	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new FileReader("in4.txt"));
		BufferedWriter bw = new BufferedWriter(new FileWriter("out4.txt"));
		for (int sets = 0; sets < 5; sets++) {
			Map<Character, Integer> value = new HashMap<Character, Integer>();
			ArrayList<Integer>[] sum = new ArrayList[3];
			String[] set = new String[3];
			for (ArrayList<Integer> s : sum) {
				s = new ArrayList<Integer>(0);
			}

			for (int i = 0; i < 5; i++) {
				for (int j = 0; j < 3; j++) {
					set[j] = br.readLine();
				}
				value.put(set[2].charAt(0), 1);
				insert(sum[3], 0, 1);
			}
			for (int i = 0; i < 3; i++) {
				int total = 0;
				for (int num : sum[i]) {
					total += num;
				}
				System.out.println(set[i] + "\t" + total);
			}
		}

	}

	public static void insert(ArrayList<Integer> sum, int index, int value) {
		sum.add(index, value);
		sum.remove(index + 1);
	}

}