I want to know that two file are same or not.

Question

Hello.
My English ability very poor.. sorry
I want to compare two file
if file is same return true
else return false;
I select file using JFileChooser.
and read the file using fileinpustream
then, trans byte array using byteArrayOutputStream..
I use equlas() method...
file1Array.equals(file2Array)
I want to know two file are same or not
How can I...

Answer 1

If you want to test whether the two files are the same, you can test for their complete filename (path + filename).
If you want to test whether the content of the two files are the same, you can convert the byteArrayOutputStream to Strings using .toString()method and test their equality. You can test for their size before the convertion to speed up the testing speed. E.g.
ByteArrayOutputStream s1 = ...
ByteArrayOutputStream s2 = ...
if (s1.size() == s2.size()) {
return s1.toString().equals(s2.toString());
} else {
return false;
}