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.

Code Java:

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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] + ", ");
    }
}

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Without knowing the contents of the file its hard to say what is going on.

The data in the notepad is:
Jones 14
Abrams 15
Smith 19
Jones 9
Alexander 22
Smith 20
Smith 17
Tippurt 42
Jones 2
Herkman 12
Jones 11

The output should be:
Abrams, 15
Alexander, 22
Herkman, 12
Jones, 2
Jones, 9
Jones, 11
Jones, 14
Smith, 17
Smith, 19
Smith, 20
Tippurt, 42

Check the size of your array versus the number of input lines/names, if the input lines is less than the size of the array the last few elements of the array will never be set (eg their value will be null).

Thanks, but I think that my array size is fine - it's just that I don't know how to sort the ages out and put the comma in between the name and age of each line.

Quote:

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Originally Posted by ComputerSaysNo

Thanks, but I think that my array size is fine - it's just that I don't know how to sort the ages out and put the comma in between the name and age of each line.

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Double check...I only count 11 entries in the file, yet you allocate an array size of 12.