Multiple file processing

[sroberts82]

Hi I was wondering if someone could help me. I have a directory with a number of .log files. I want to be able to pass the name of the directory in as a command line arguement, and process each of the *.log files and output the results into 1 single file. How can I go about this? Thank you in advance,
Ste

 

[sedj]

Create a java.io.File object using the String arg of the directory.

Open a fileoutputstream or filewriter object for your output file.

Use the listFiles() method on that object to get a list of files, using a custome FilenameFiler object to filter out the ".log" files.

For each file in the list, open the file, read the contents, and write out to your output file, then close.

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