Program:1 for noel

Hi friends here i added the first program for noel.
check noels requirements in here:
http://www.blogger.com/comment.g?blogID=5133484865049964130&postID=7557509313208084077

/*
   Warning:
   Handling year data also as string- not as an integer
   when adding a new car.. we are not checking whether
   same car already exists so there may be duplicates...
*/

import java.io.*;
import java.util.*;

public class fornoel{
    ArrayList alcars;
    fornoel(){
        alcars=new ArrayList();
        String[] soptions={ "1) Add a car", "2) View Car Details ",
                            "3) delete a car", "4) quit"
                          };
        while(true){
             for(int i=0;i<soptions.length;i++)
                System.out.println(soptions[i]);
             System.out.println("Enter your choice: ");
             int choice=0;
             Scanner scan=new Scanner(System.in);
             choice=scan.nextInt();
             switch(choice){
                 case 4:
                    return;
                 case 3:
                    if(alcars.isEmpty()){
                        System.out.println("There is nothing to delete..");
                        break;
                    }
                    System.out.println("Enter the make of the car :");
                    String make=scan.next();
                    if(!alcars.contains(make)){
                        System.out.println("No car exists in this make..");
                        break;
                    }
                    System.out.println("Enter the model of the car :");
                    String model=scan.next();
                    if(!alcars.contains(model)){
                        System.out.println("No car exists in this model..");
                        break;
                    }
                    System.out.println("Enter the year :");
                    String year=scan.next();
                    if(!alcars.contains(year)){
                        System.out.println("No record found at this year..");
                        break;
                    }
                    delete(make,model,year);
                    break;
                case 2:
                    if(alcars.isEmpty()){
                        System.out.println("No record found ..");
                        break;
                    }
                    System.out.println("Enter the make of the car :");
                    make=scan.next();
                    showcars(make);
                    break;
                case 1:
                    System.out.println("Enter the make of the car :");
                    make=scan.next();
                    System.out.println("Enter the model of the car :");
                    model=scan.next();
                    System.out.println("Enter the year :");
                    year=scan.next();
                    if(!alcars.isEmpty())alcars.trimToSize();
                    alcars.add(make);alcars.add(model);alcars.add(year);
                    break;
                default:
                   System.out.println("Please enter a valid choice...");

             }

        }
    }

    void delete(String make,String model,String year){
         boolean match=false;
         if(alcars.isEmpty()) {
             System.out.println("No records found..");
             return;
         }
         Object[] objcars=alcars.toArray();
        for(int i=0;i<objcars.length;objcars=alcars.toArray()){
            boolean del=false;
            if(objcars[i].equals(make)){
                if(objcars[i+1].equals(model)){
                    if(objcars[i+2].equals(year)){
                        alcars.remove(i+2);alcars.remove(i+1);alcars.remove(i);
                        del=true;
                        match=true;
                    }
                }
            }
            if(del==false) i+=3;
            else{
                if(alcars.isEmpty()) return;
                if(!alcars.contains(make)) return;
                i=0;
            }
        }
        if(!match) System.out.println("No match found...");
    }

    void showcars(String make){
        Object[] objcars=alcars.toArray();
        for(int i=0;i<objcars.length;i+=3){
            if(objcars[i].equals(make)){
                 System.out.println("make="+objcars[i]);
                 System.out.println("model="+objcars[i+1]);
                 System.out.println("year="+objcars[i+2]);
                 System.out.println("-------------------");
            }
        }
    }

    public static void main(String args[]){
        new fornoel();
    }
}