majkel

import java.awt.BorderLayout; import java.awt.Container; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import javax.swing.AbstractButton; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTextArea; public class Edytor extends JFrame implements ActionListener { private JButton wczytaj=new JButton("wczytaj"); private JButton zapisz=new JButton("zapisz"); private JTextArea edytor=new JTextArea(); private JScrollPane scroll=new JScrollPane(); public Edytor() { Container c = this.getContentPane(); Container d = new Container(); d.setLayout(new GridLayout()); c.setLayout(new BorderLayout()); Container e = this.getContentPane(); Container e1 = new Container(); //c.add(przycisk,BorderLayout.SOUTH); d.add(wczytaj,BorderLayout.EAST); d.add(zapisz,BorderLayout.WEST); c.add(d,BorderLayout.SOUTH); c.add(edytor,BorderLayout.CENTER); e1.add(scroll,BorderLayout.CENTER); wczytaj.addActionListener(this); zapisz.addActionListener(this); this.setSize(new Dimension(600,600)); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); scroll.setBounds(5,5,300,200); } public static void main(String[] args) { new Edytor(); } @Override public void actionPerformed(ActionEvent a) { if(a.getSource()==wczytaj) { JFileChooser fc =new JFileChooser(); fc.showOpenDialog(null); String tekst = ""; File plik=fc.getSelectedFile(); try { BufferedReader br=new BufferedReader(new FileReader(plik)); String linia; do { linia=br.readLine(); if(linia!=null) tekst+=linia+"\n"; } while(linia!=null); br.close(); edytor.setText(tekst); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } { if(a.getSource()==zapisz) { String tekst; /** * @param args */ JFileChooser fc =new JFileChooser(); fc.showSaveDialog(null); tekst=""; for(int i=0;i<10;i++) { tekst+="Hello World!\n"; } File plik=fc.getSelectedFile(); try { BufferedWriter bw=new BufferedWriter(new FileWriter(plik)); bw.write(tekst); bw.flush(); bw.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } }