java programming help
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  1. #1
    Join Date
    Dec 2012
    Posts
    1

    java programming help

    hi,

    i am new to java.i have been given assignment where i have to display emp name based on state city area.

    i have mysql table employee in db with int id[10],name varchar(20),state varchar(20),city varchar(20),area varchar(20));

    i have written java program which works properly .where it should display id and name based on state city area.


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

    public class Employeelookup {

    static ArrayList<Employeelookup> al = new ArrayList<Employeelookup>();
    int id;
    String name;
    String State;
    String city;
    String Area;
    class OldEmployeeObject {
    int id;
    String name;
    String State;
    String city;
    String Area;
    }
    class State {
    City[]
    }
    class City {
    Area[]
    }
    class Area {
    Employee[]
    }
    class Employee {
    id;
    name;
    }
    static int count = 0;
    {
    }
    Employeelookup()
    {
    }
    Employeelookup(int id, String name, String State,String city,String Area)
    {
    this.id = id;
    this.name = name;
    this.State=State;
    this.city=city;
    this.Area=Area;

    count++;
    }
    public void SetId(int id)

    {
    this.id=id;
    }
    public int getId()
    {
    return id;
    }
    public void SetName()
    {
    this.name=name;
    }

    public void putDetails(Employeelookup e)
    {
    al.add(e);

    }

    public Employeelookup getDetails(int id)
    {
    Employeelookup es = (Employeelookup)al.get(id);
    return es;
    }

    public static void main(String[] args ) throws IOException
    {

    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    Employeelookup e = new Employeelookup();
    Employeelookup e1 = new Employeelookup(1, "SaiRam", "karnataka","bangalore","rajajinagar");
    Employeelookup e2 = new Employeelookup(2, "Anu", "karnataka","mysore","temple road");
    Employeelookup e3 = new Employeelookup(3, "Vasu", "karnataka","bangalore","rajajinagar");
    Employeelookup e4 = new Employeelookup(4, "Shillu", "Tamil Nadu","madhurai","b");
    Employeelookup e5 = new Employeelookup(5, "Madhu", "Karnataka","shimoga","bus stop");
    Employeelookup e6 = new Employeelookup(6, "Volga", "Andra","abc","railway stop");


    e.putDetails(e1);
    e.putDetails(e2);
    e.putDetails(e3);
    e.putDetails(e4);
    e.putDetails(e5);
    e.putDetails(e6);


    while(true)
    {

    System.out.println("Enter state: ");
    String State = br.readLine();

    System.out.println("Enter city: ");
    String city = br.readLine();
    System.out.println("Enter area: ");
    String Area = br.readLine();

    //System.out.println("Enter Employeelookup id to get the Employeelookup details: ");
    //int id = Integer.parseInt(br.readLine());

    boolean flag = false;

    for(int i=0; i <al.size();i++) {
    Employeelookup es = e1.getDetails(i);

    if((State.equals(es.State))&& (city.equals(es.city))&& (Area.equals(es.Area)))
    {
    System.out.print(es.id +" "+ es.name+" " );

    //if(id == es.id)
    {
    System.out.println("The details of the Employeelookup is: ");
    System.out.print(es.id +" "+ es.name+" " );
    flag = true;
    break;
    }
    }
    }
    System.out.println(" ");

    if(!flag)
    {
    System.out.println("Sorry, no data exists with the id ");
    }
    System.out.println(" ");
    String ch = null;

    while(true)
    {
    System.out.println("Want to Continue(y/n)?)");
    System.out.println(" ");
    ch = br.readLine();
    if(ch.equalsIgnoreCase("y") || ch.equalsIgnoreCase("n")) break;
    if(!(ch.equalsIgnoreCase("y") || ch.equalsIgnoreCase("n")))
    {
    System.out.println("Invalid option : please type y/n");
    System.out.println(" ");
    }
    }

    if(ch.equalsIgnoreCase("n"))
    {
    System.out.println(" ");
    System.out.println("Thank you");
    break;
    }
    }
    }
    }

    the above program works correctly that accepts state city area from command line searches employee arrays and display emp id and name if its exist.

    but i need to create this class structure for employee table.

    class state
    {

    state name->city[]--> it should display state name and array of cities;
    state[0]->karnataka
    ->bangalore
    ->mysore
    -> shimoga

    state[1]-->delhi
    -->A
    -->B


    }

    my next class

    class city
    {
    city name:area[];
    it should display city name-->with array of area[] of that city
    city[0]->bangalore.
    area[0]-->jayangar
    area[1]-->majestic


    }

    class Area
    {

    area name-->array of employees;

    area[0]-->jayanagar.
    emp[o]-->a
    emp[1]-->b

    area[1]-->majestic
    emp[0]-->a
    emp[1]-->n

    }
    basically its like state class
    should display array of city[] of each state
    and city class should display
    all area present in that city

    area[]
    and area class shoul display all emp from that area
    emp[]




    regards

  2. #2
    Join Date
    Dec 2012
    Location
    Danang, Viet Nam
    Posts
    9

    Re: java programming help

    Finally, what is your stuck?

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