Files

1
Files

• Dr. L. Jololian

2
Topics Covered

• Creating a new file object
• File f new File("myfile.txt")
• Creating a new file
• f.createNewFile()
• Deleting a file
• file.delete()
• Saving to a file
• BufferedWriter out new BufferedWriter(
• new FileWriter(file))
• out.write( aString)
• out.close()

3
Create a New File
import java.io. public class Files public
Files () try File f new
File("myfile.txt") boolean result
f.createNewFile() if (result)
System.out.println("File created")
else System.out.println("File not
created") catch (IOException e)
// Handle error public static void
main(String args) new Files()
4
Deleting a File
File file new File(abc.txt) boolean result
file.delete() if (result) System.out.printl
n("File deleted") else System.out.println("C
annot be deleted")
5
Saving
else if(e.getSource() save e.getSource()
saveButton) int v fc.showSaveDialog(E
ditor.this) File file fc.getSelectedFile()
try BufferedWriter out new
BufferedWriter( new FileWriter(file))
out.write(textarea.getText())
out.close() catch (IOException e2)
JOptionPane.showMessageDialog(null, "Erro
r in saving")