Java Regular Expression to read multiple directories in single statement

Question

I wrote a method in Java,

postingFile(" C:\Tables\A_env\A_Dif1.csv ")

that reads the CSV file and process the data inside it. I got 26 environments, A through Z and I'm searching for a Java regular expression that can read and process data of 26 environments with single line of code.

I tried multiple combinations of Java regex but nothing worked.

Any help or guidance would be appreciated

Your question would be clearer if you gave some more context, and provided your best attempt at a solution for people to start with. As it is, it is rather unclear what exactly you are looking for. — dsh, Jan 20 '17 at 18:09

score 0 · Answer 1 · answered Jan 20 '17 at 18:11

If your directories are named consistently like the example you presented, and you know the labels, as indicated, then you can simply compute each name.

For example:

char label = 'A';
for (int i = 0; i < 26 ; i += 1, label += 1)
    {
    final String path = "C:\\Tables\\"+label+"_env\\"+label+"_Dif1.csv";
    postingFile(path);
    }

Java Regular Expression to read multiple directories in single statement

1 Answers1