import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;

class Strumienie extends JFrame implements ActionListener {
	JButton read, save1;
	TextArea textArea;
	JPanel panel;

	Strumienie(){
		super("Strumienie");
		setBounds(100,100,300,300);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		panel = new JPanel(null);
		panel.setBackground(Color.GREEN);

		read = new JButton("Odczytaj");
		save1 = new JButton("Zapisz");
		textArea = new TextArea();

		read.setBounds(20,200,100,25);
		read.addActionListener(this);

		save1.setBounds(160,200,100,25);
		save1.addActionListener(this);

		textArea.setBounds(20,50,240,100);
		panel.add(read);
		panel.add(save1);
		panel.add(textArea);
		setContentPane(panel);
		setVisible(true);
	}

	public void actionPerformed(ActionEvent e) {
		Object ob = e.getSource();

		if(ob==save1){
			try {
				panel.setBackground(Color.CYAN);
				FileWriter plik = new FileWriter("tekst123.txt");
				plik.write(textArea.getText());
				plik.close();
			}
			catch(IOException x){
				textArea.setText("Err0r!@#"+x.toString());
			}
		}

		if(ob==read){
			try {
				panel.setBackground(Color.YELLOW);
				FileReader plik = new FileReader("tekst123.txt");
				BufferedReader bufor = new BufferedReader(plik);
				String line = bufor.readLine();
				textArea.setText(line+"\n");
				}

			catch(IOException x) {
				textArea.setText("Err0r!@#"+x.toString());
			}
		}
	}

	public static void main (String arg[]){
		new Strumienie();
	}
}