Sorting a String Array in alpha order (Using ArrayList)

Question

Hello all!
I am pretty new to Java and am trying to do a, seemingly, simple task; but cannot get the syntax right. I am trying to sort an ArrayList in aplha order based off of the variable String Product. Any help would be awesome!
First Class:
//This program stores all of the variables for use in Inventory.java
public class Vars {
     // defining all variables
     private String product;
     private String prodCode;
     private double price;
     private double invCount;
     // Begin listing getters for class
     public Vars(String product) {
          this.product = product;
     public String getProdCode() {
          return prodCode;
     public String getProduct() {
          return product;
     public double getPrice() {
          return price;
     public double getInvCount() {
          return invCount;
     // Declaring the total variable
     public double total() {
          return invCount * price;
     // Begin listing setters for variables
     public void setProduct(String product) {
          this.product = product;
     public void setProdCode(String prodCode) {
          this.prodCode = prodCode;
     public void setInvCount(double invCount) {
          this.invCount = invCount;
     public void setPrice(double price) {
          this.price = price;
Second Class:
//This program will use the variables stored in Vars.java
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Inventory {
     public static void main(String args[]) {
          Scanner input = new Scanner(System.in);
          //defining and declaring local variables
          String exit;
          int counter;
          double gtotal;
          exit = "exit";
          counter = 0;
          gtotal = 0;
          //beginning message and beginning of the loop
          System.out.print("Welcome to the Inventory Contol System\nPlease enter the Product name: ");
          System.out.println();
          System.out.println("When finished entering in the data, please enter EXIT in place of Product name.");
          String name = input.next();
          List<Vars> var = new ArrayList<Vars>(); //creating arraylist object
          //loop while exit is not entered, exit loop once exit is typed into product variable
          while (name.compareToIgnoreCase(exit) != 0) {
               Vars vars = new Vars(name); //calling Vars methods
               counter = counter ++;
               System.out.println("Please enter the Product Code: ");
               vars.setProdCode(input.next());
               System.out.println("Inventory Count: ");
               vars.setInvCount(input.nextDouble());
               //Making sure that the value entered is a positive one
               if(vars.getInvCount() < 0){
                    System.out.println("Please enter a positive number: ");
                    vars.setInvCount(input.nextDouble());
               System.out.println("Price per product:");
               vars.setPrice(input.nextDouble());
               //Making sure that the value entered is a positive one
               if(vars.getPrice() < 0) {
                    System.out.println("Please enter a positive number: ");
                    vars.setPrice(input.nextDouble());
               System.out.println("Please enter the next Product name, or enter EXIT: ");
               name = input.next();
               gtotal += vars.total(); //calculation for Grand Total of all products entered
               var.add(vars);
               static void slectionSort(int[] product) {
               for (int lastPlace = product.length-1; lastPlace > 0; lastPlace--) {
               int maxLoc = 0;
               for (int j = 1; j <= lastPlace; j++) {
               if (product[j] > product[maxLoc]) {
               maxLoc = j;
               int temp = product[maxLoc];
               product[maxLoc] = product[lastPlace];
               product[lastPlace] = temp;
          //Sorting loop function will go here, before the information is displayed
          //Exit message and array list headers
          System.out.print("Thank you for using the Inventory program.\nHave a wonderful day.\n");
          System.out.printf("Code\tProduct\tCount\tPrice\tTotal\n");
          System.out.println();
          //For loop to display all entries via an ArrayList
          for (Vars vars : var) {
               System.out.printf("%5s\t%5s\t%.01f\t$%.02f\t$%.02f\n\n", vars.getProdCode(),
                         vars.getProduct(), vars.getInvCount(), vars.getPrice(),vars.total());
          //Displays the amount of entries made and Grand Total of all products entered
          System.out.println();
          System.out.printf("The number of products entered is %d\n", var.size());
          System.out.printf("The Grand Total cost for the products entered is $ %s\n", gtotal);
          System.out.println();
}

Answer 1

go through below links, you can easily understand how to sort lists.
http://www.onjava.com/lpt/a/3286
http://java.sun.com/docs/books/tutorial/collections/interfaces/order.html
http://www.javaworld.com/javaworld/jw-12-2002/jw-1227-sort.html