Thread: Selection Sorting a text array

I have to use selection sort to sort out a list of names and respective ages from a notepad file.
I have been able to implement the names and ages into array, and sort the names, but not the ages if there is a plural of the name and put a comma in between.
Please can you help me - my code is below.

import java.io.*;
import java.util.*;
public class MultipleKeySorting {
    public static void main(String[] args) throws IOException {
        FileInputStream in = new FileInputStream("names_Age.txt");
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        int maxIndx = -1;
        String a[] = new String[12];
        for (int h = 0; h < a.length-1; h++) {
            maxIndx++;
            a[maxIndx] = br.readLine();
            System.out.println(a[maxIndx]);
        }
        sort(a);
        System.out.println("");
        print(a);
    }
    static String[] sort(String[] a) {
        String min;
        int minIndex;
        for (int i = 0; i < a.length; ++i) {
            min = a[i];
            minIndex = i;
            for (int j = i + 1; j < a.length-1; j++) { //Find minimum
                if (min.charAt(0) > a[j].charAt(0)) {
                    min = a[j];
                    minIndex = j;
                }
            }
            a[minIndex] = a[i]; //swap
            a[i] = min;
        }
        return a;
    } 
    public static void print(String[] a) {
        // prints the elements of the specified array in sequence.
        if (a == null || a.length == 0) return;
        for (int i = 0; i < a.length-1; i++)
            System.out.println(a[i] + ", ");
    }
}