package seqSort;



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

    public class Main {


        public static void main(String[] args) throws Exception{
            //parsing and reading the CSV file data into the customer (object) array
            // This definitely works, have used it for a different method
            Scanner sc = new Scanner(new File("customers_data.csv"));
            Customer[] customers = new Customer[10000];
            Customer[] results = new Customer[10];

            // this will just print the header
            System.out.println(sc.nextLine());

            int i = 0; String st = "";
            while (sc.hasNextLine())  //returns a boolean value
            {
                st = sc.nextLine();
                String[] data = st.split(",");
                customers[i] = new Customer(Integer.parseInt(data[0]), data[1], data[2], data[3], data[4].charAt(0), data[5]);
                i++;
            }
            sc.close();  //closes the scanner#
            SequentialSearch(customers, "name");
            Arrays.toString(results);
             for (i = 0; i < results.length; i++) {
                 System.out.print(results[i] + "\n ");
             }



}

        static Customer[] SequentialSearch(Customer[] customers, String searchKey){
            int n = customers.length;
            int a = 0;
            Customer[] results = new Customer[n];
            for(int i = 0; i < n; i++){
                if (customers[i].equals(searchKey)) {
                    results[a] = customers[i];
                    return results;

                }

            }
            return results.length > 0 ? results:null;
            }

    }


_____________________________________________________________________________________________________________________________________
/*Customer class*/
    ____________________________________________________________________________

public class Customer implements Comparable<Object>{

    private int cusNo;
    private String dateOfBirth;
    private String firstName;
    private String lastName;
    private char gender;
    private String joinDate;


    public Customer(int cusNo, String dateOfBirth, String firstName, String lastName, char gender, String joinDate)
    {
        this.cusNo = cusNo;
        this.dateOfBirth = dateOfBirth;
        this.firstName = firstName;
        this.lastName = lastName;
        this.gender = gender;
        this.joinDate = joinDate;
    }

    public int getCusNo() {
        return cusNo;
    }

    public void setCusNo(int cusNo) {
        this.cusNo = cusNo;
    }

    public String getDateOfBirth() {
        return dateOfBirth;
    }

    public void setDateOfBirth(String dateOfBirth) {
        this.dateOfBirth = dateOfBirth;
    }

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public char getGender() {
        return gender;
    }

    public void setGender(char gender) {
        this.gender = gender;
    }

    public String getJoinDate() {
        return joinDate;
    }

    public void setJoinDate(String joinDate) {
        this.joinDate = joinDate;
    }


    // NOTE:only allows comparisons based on the firstName
    @Override
    public int compareTo(Object obj) {
        Customer cus = (Customer)obj;
        return firstName.compareTo(cus.getFirstName());
    }

    // return a String containing the customer details
    @Override
    public String toString()
    {
        return cusNo+" "+dateOfBirth+" "+firstName+" "+lastName+" "+gender +" "+ joinDate;
    }

}