Question

I want to move some file to other place, using Java SE 1.6

So, I have two files:

File srcFile, dstFile;

When I want to move file srcFile to the place of dstFile:

boolean result = srcFile.renameTo(dstFile);

But there some errors can occur, and result will be false. In this case I want to ask user if he wants to repeat this operation. Which is the best way to do this? I would use a goto statement here, but Java doesn’t have it.

Currently, I am doing it in this way:

boolean retry = false;
do {
    if (!srcFile.renameTo(dstFile)) {
        // TODO: Error during file replacement
        Object[] retryOptions = { "Yes", "Retry" };
        replaceFileOption = JOptionPane.showOptionDialog(frame, "There was a error durring moving file" + srcFile.getPath() + ". Skip this file?", "Warning", JOptionPane.DEFAULT_OPTION, JOptionPane.QUESTION_MESSAGE, null,
                    retryOptions, retryOptions[0]);
        if (replaceFileOption == 2) 
            retry = true;
    }
} while (retry);

Is there another way, which will not be using while() cycles?

Answer 1

When your goal was to avoid an extra var, do it this way

while (!srcFile.renameTo(dstFile)) {
       Object[] retryOptions = { "Yes", "Retry" };
       if (2 != JOptionPane.showOptionDialog(frame, "There was a error durring moving file" + srcFile.getPath() + ". Skip this file?", "Warning", JOptionPane.DEFAULT_OPTION, JOptionPane.QUESTION_MESSAGE, null,
                retryOptions, retryOptions[0])) break;
}