Kod: Zaznacz cały
import java.awt.BorderLayout;
import java.awt.Component;
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.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
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();
public Edytor()
{
Container c = this.getContentPane();
Container c2 = new Container();
c2.setLayout(new GridLayout());
c.setLayout(new BorderLayout());
//c.add(przycisk,BorderLayout.SOUTH);
c2.add(wczytaj,BorderLayout.EAST);
c2.add(zapisz,BorderLayout.WEST);
c.add(c2,BorderLayout.SOUTH);
c.add(edytor,BorderLayout.CENTER);
wczytaj.addActionListener(this);
this.setSize(new Dimension(600,600));
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
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+"
";
}while(linia!=null);
br.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.print(tekst);
}
edytor.append("wczytaj");
System.out.println("zapisz");
if(a.getSource()==zapisz);
{
System.out.println(edytor.getText());
}
}
} Kod: Zaznacz cały
public void zapisz(){
JFileChooser fc =new JFileChooser();
fc.showSaveDialog(null);
tekst="";
for(int i=0;i<10;i++)
{
tekst+="Hello World!
";
}
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();
}