/*
    Array7.java
    CIS 160
    David Klick
    2004-11-01

    Using arrays of objects.
*/

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.StringTokenizer;

public class Array7 {
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new FileReader("people2.txt"));
        final int MAXSIZE = 100;
        int numRecs = 0;
        Employee[] emp = new Employee[MAXSIZE];

        // read records into Employee array
        String s;
        s = in.readLine();
        while (s != null) {
            if (numRecs < MAXSIZE) {
                emp[numRecs] = new Employee(s);
                numRecs++;
            } else {
                System.out.println("Error: Too many records in file");
                break;
            }
            s = in.readLine();
        }
        in.close();

        // sort Employee array based on ID
        for (int i=0; i<numRecs-1; i++) {
            for (int j=i+1; j<numRecs; j++) {
                if (emp[i].compareTo(emp[j]) > 0) {
                    emp[i].swap(emp[j]);
                }
            }
        }

        // display records from arrays
        for (int i=0; i<numRecs; i++) {
            System.out.printf("%3d: %s\n", emp[i].getID(), emp[i].getName());
        }
        System.out.println(numRecs + " records");
    }
}

class Employee {
    private int id;
    private String name;

    // constructor for when id and name are provided
    public Employee(int i, String s) {
        setID(i);
        setName(s);
    }

    // constructor for when - id, "name" - are provided
    public Employee(String s) {
        StringTokenizer tok = new StringTokenizer(s, ",");
        if (tok.countTokens() != 2) {
            System.out.println("Invalid number of fields in record");
            setID(-1);
            setName("");
        } else {
            try {
                setID(Integer.parseInt(tok.nextToken()));
            } catch (NumberFormatException e) {
                setID(-1);
            }
            StringBuffer sb = new StringBuffer(tok.nextToken());
            int ndx = sb.length() - 1;
            while (ndx >= 0) {
                if (sb.charAt(ndx) == '"') sb.deleteCharAt(ndx);
                ndx--;
            }
            setName(sb.toString().trim());
        }
    }

    public void setID(int i) {
        if (i <= 0) i = -1;
        id = i;
    }
    public void setName(String s) {
        if (s == null) name = new String("");
        else name = new String(s);
    }
    public int getID() { return id; }
    public String getName() { return name; }

    public int compareTo(Employee e) {
        if (id > e.id) return 1;
        if (id < e.id) return -1;
        return 0;
    }
    public void swap(Employee e) {
        int tmp = id;
        String stmp = name;
        id = e.id;
        name = e.name;
        e.id = tmp;
        e.name = stmp;
    }
}