[Java] Simple Line number Adder! (first 1o numbers)

import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.border.EmptyBorder;


public class NumberAdder extends JFrame {

    private static final long serialVersionUID = -4108707432251230843L;
    private JPanel contentPane;
    private JButton run;
    private String[] words;

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    NumberAdder frame = new NumberAdder();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    public NumberAdder() {
        super("Number Adder!");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        final JScrollPane scrollPane = new JScrollPane();
        scrollPane.setBounds(0, 27, 434, 208);
        contentPane.add(scrollPane);

        final JTextArea console = new JTextArea();
        scrollPane.setViewportView(console);

        final JLabel in = new JLabel("Input:");
        in.setBounds(0, 11, 46, 14);
        contentPane.add(in);

        run = new JButton("Process!");
        run.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent r) {
                if(run.getText().equalsIgnoreCase("Reset")){
                    in.setText("Input:");
                    run.setText("Process!");
                    console.setText("");
                    return;
                }
                in.setText("Output:");
                run.setText("Reset");
                run.setEnabled(false);
                words = console.getText().split("\n");
                console.setText("");
                wordloop:for(String s : words){
                    int sum =0;
                    String currentSet = "";
                    char[] chars =s.toCharArray();
                    if(chars.length <9) continue;
                    for(int i=0; i<10; i++){
                        try{
                            int parse = Integer.parseInt(chars[i]+"");
                            sum+=parse;
                            currentSet += chars[i];
                        }catch (NumberFormatException e){
                            console.append("Error "+chars[i]+" is not a valid number!\n");
                            continue wordloop;
                        }
                    }
                    console.append("["+currentSet+"] -> "+sum+"\n");
                }
                run.setEnabled(true);

            }
        });
        run.setBounds(174, 239, 89, 23);
        contentPane.add(run);
    }
}