@Override
public void actionPerformed(ActionEvent ev) {
if (ev.getSource() == btn) {
File file;
String string = "";
try {
if (radioRead.isSelected()) {
file = new File(txt.getText());
DataInputStream input = new DataInputStream(new FileInputStream(file));
int inByte;
while ((inByte = input.read()) != -1) {
string += (char) inByte;
}
input.close();
} else if (radioEncrypt.isSelected()) {
string = fileContent.getOut();
String strEncrypt = new String();
for (int i = 0; i < string.length(); i++) {
char ch = string.charAt(i);
if (ch >= 'A' && ch <= 'Z') {
ch += 13;
if (ch > 'Z') {
ch -= 26;
}
} else if (ch >= 'a' && ch <= 'z') {
ch += 13;
if (ch > 'z') {
ch -= 26;
}
}
strEncrypt += ch;
}
string = strEncrypt;
}
if (fileContent == null) {
fileContent = new FileContent(string);
} else {
fileContent.setVisible(true);
fileContent.setOut(string);
}
} catch (FileNotFoundException e) {
JOptionPane.showMessageDialog(this, "Can't find the file.");
} catch (IOException e) {
JOptionPane.showMessageDialog(this, "IO Exception " + e.getMessage());
}
}
}
private InputStream inputStreamFrom(final FileContent content) throws FileSystemException {
return content.getInputStream();
}
private ZipEntry entryFor(final String name, final FileContent content)
throws FileSystemException {
final ZipEntry entry = new ZipEntry(name);
entry.setTime(content.getLastModifiedTime());
return entry;
}