import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class RegexTest extends JFrame implements ActionListener {
	private JTextArea previewText;
	private JTextArea resultText;
	private JTextField regexText;
	private JButton cmdGo;
	
	private JScrollPane scrollPreview;
	private JScrollPane scrollResult;
	
	public static void main(String[] args) {
		RegexTest rt = new RegexTest();
		rt.setVisible(true);
	}
	
	public RegexTest(){
		super("w00t");
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		buildFrame();
	}
	
	private void buildFrame(){
		this.setBounds(50,50,500,500);
		this.setLayout(new GridLayout(4,1));
		previewText = new JTextArea();
		resultText = new JTextArea();
		regexText = new JTextField();
		cmdGo = new JButton();
		
		scrollPreview = new JScrollPane(previewText);
		scrollResult = new JScrollPane(resultText);
		
		previewText.setBorder(BorderFactory.createLineBorder(Color.BLACK));
		previewText.setText("Enter in the text here");
		
		resultText.setEditable(false);
		resultText.setText("Result will go here");
		
		regexText.setText("Place the Regex Here");
		
		cmdGo.setText("Regex that b!@#$!");
		
		this.getContentPane().add(scrollPreview);
		this.getContentPane().add(scrollResult);
		this.getContentPane().add(regexText);
		this.getContentPane().add(cmdGo);
		
		cmdGo.addActionListener(this);
	}

	public void actionPerformed(ActionEvent evt) {
		if (evt != null){
			String input = previewText.getText();
			String regex = regexText.getText();
			
			String result = input.replaceAll(regex, "");
			
			resultText.setText(result);
		}
	}

}