Witam dopiero zaczynam przygodę z graficznymi programami i mam problem z actionPerformed. Chciałem do każdego przycisku zrobić osobne ale zawsze wywala mi że już posiadam (mam już od
jednego przycisku ) więc w tamtym actionPerformed umieściłem czynność następnego przycisku i cały program szaleje.
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.*;
public class Interface extends JFrame implements ActionListener {
JButton getBudget = new JButton("getBudgetWithFile ");
@Override
public void actionPerormed( ActionEvent e) {
}
JButton saveBudget = new JButton("saveBudget");
JButton quit = new JButton("QUIT");
JTextArea showBudget = new JTextArea(1,5);
public Interface() {
super("hello world");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocation(2500,500);
setSize(500,500);
JPanel pane = new JPanel();
getBudget.addActionListener(this);
saveBudget.addActionListener(this);
pane.add(getBudget);
pane.add(showBudget);
pane.add(saveBudget);
// pane.add(quit);
getContentPane().add(pane);
add(pane);
setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
String name = getBudget.getText();
String line;
try {
BufferedReader br = new BufferedReader(new FileReader("budget.txt"));
while ((line = br.readLine())!= null) {
showBudget.append(line);
br.close();
}
} catch (Exception ek){}
String name2 = saveBudget.getText();
String text = showBudget.getText();
System.out.print(text + "text");
System.out.print(name2 + "name2");
try {
PrintWriter writer = new PrintWriter("budget.txt");
writer.print("");
writer.close();
BufferedWriter bw = new BufferedWriter(new FileWriter("budget.txt"));
// bw.write("");
bw.write(text,0,text.length());
bw.write(text);
bw.flush();
bw.close();
} catch (Exception ek) {}
}
}