Question

I cannot for the life of me get this program to run properly. I don't know what I'm doing wrong. Could the format of my text files be the issue?

Edit: The program works this way, you choose a year and a gender and then enter a name. When you press the button its should give you the ranking or popularity of the name. There are 5 files that I have to search through, named 2006.txt to 2010.txt.

First the files looked like this:

1    Jacob   22,507    Emma    18,765
2    Michael   20,524    Isabella    18,564
3    Ethan   20,174    Emily    17,397
4    Joshua   19,133    Olivia    17,030

And then I changed them to this. Neither one works.

1   Jacob   1   Emily
2   Michael   2   Emma
3   Joshua   3   Madison
4   Ethan   4   Isabella

Code:

import java.io.File;
import java.io.FileReader;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.IOException;
import java.io.BufferedReader;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Locale;

public class FindPopularity extends JFrame implements ActionListener
{

    int popular[] = new int[12];
    ArrayList popular = new ArrayList<>();
    ArrayList slno = new ArrayList<>();
    ArrayList babyName = new ArrayList<>();

    int c = 0;

    JLabel Year, Gender, Name;
    JTextField nam, results;
    JComboBox cbYear, cbGender;
    JButton btnFind;
    JFrame Window;
    JPanel p1, p2, p3, p4, p5;
    FindPopularity()
    {
        String []year = {"2006", "2007", "2008", "2009", "2010"};
        String []gender = {"Male", "Female"};
        Year = new JLabel("Select Year");
        Gender = new JLabel("Gender");
        Name = new JLabel("Enter name");
        cbYear = new JComboBox(year);
        JComboBox cbGender = new JComboBox<>(gender);
        nam = new JTextField(20);
        results = new JTextField(20);
        btnFind = new JButton("Find Rank");
        btnFind.addActionListener(this);
        Window = new JFrame("Baby Name Popularity");
        Window.setLayout(new GridLayout(5,2));
        p1 = new JPanel(new FlowLayout());
        p2 = new JPanel(new FlowLayout());
        p3 = new JPanel(new FlowLayout());
        p4 = new JPanel(new FlowLayout());
        p5 = new JPanel(new FlowLayout());
        p1.add(Year);
        p1.add(cbYear);
        p2.add(Gender);
        p2.add(cbGender);
        p3.add(Name);
        p3.add(nam);
        p4.add(btnFind);
        p5.add(results);
        Window.add(p1);
        Window.add(p2);
        Window.add(p3);
        Window.add(p4);
        Window.add(p5);
        Window.setVisible(true);
        Window.setSize(400,400);
        Window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    int search(String data)
    {
        int pos = -1;
        for(int x = 0; x < c-1; x++)
            if((data.compareTo(babyName.get(x))) == 0)
            {
                pos = x;
                break;
            }
        return pos;
    }
    public void actionPerformed(ActionEvent ae)
    {
        if(ae.getSource() == btnFind)
        {
            String myresults = "";
            int index = search(nam.getText());
        
            if(index == -1)
                myresults = "No such baby name available!";
            else
                myresults = myresults + babyName.get(index) + " was #" + slno.get(index) + " in " + cbYear.getSelectedItem() + "!";
            results.setText(myresults);
        }
    }
    void readFile()
    {
        try
        {
         
            File file = new File("/Users/Marque/Desktop/2006.txt");
            FileReader reader = new FileReader(file);

       
            BufferedReader br = new BufferedReader(reader);

            String data[] = new String[20];
            String data1[] = new String[3];
            System.out.println("Popularity Information");

            while ((data[c] = br.readLine()) != null)
            
                {
                    System.out.println(data[c]);
                  
                    data1 = data[c].trim().split("\\s+");;

                    slno.add(c,Integer.parseInt(data1[0]));

               
                    babyName.add(c,data1[1].trim());
                    NumberFormat nf = NumberFormat.getInstance(Locale.US);
                    popular.add(c,nf.parse(data1[2].trim()).intValue());
                    c++;
                }
            reader.close();
            br.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }
    public static void main(String ss[])
    {
        FindPopularity fp = new FindPopularity();
        fp.readFile();
    }
}

Answer 1

It worked for me

Keep the data : Seperated by one space
1 Jacob 22,507 Emma 18,765
2 Michael 20,524 Isabella 18,564
3 Ethan 20,174 Emily 17,397
4 Joshua 19,133 Olivia 17,030

=====
See Output