Project Euler - Problem 22

euler.java

package euler;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Arrays;

public class Names {
	public static void main(String[] args) throws Throwable {
		BufferedReader br = new BufferedReader(new FileReader(new File("p022_names.txt")));
		
		String[] arr = br.readLine().split("\",\"");
		arr[0] = arr[0].substring(1, arr[0].length());
		arr[arr.length - 1] = arr[arr.length - 1].substring(0, arr[arr.length - 1].length() - 1);
		br.close();
		
		Arrays.sort(arr);
		
		int sum = 0;
		for (int i = 0; i < arr.length; i++) {
			sum += (i+1)*score(arr[i]);
		}
		System.out.println(sum);
	}
	
	public static int score(String s) {
		int score = 0;
		for (int i = 0; i < s.length(); i++) {
			score += s.charAt(i) - 64;
		}
		return score;
	}
}