how can i write java output in text file continuously

Question

I tried to get the output of java program as a text file.but when i print output in a text file and for the next set of input it overwrites on it.I want to see all of my output in an order in a text file.How can I?

Answer 1

If using FileWriter , pass true as a second argument to FileWriter to turn on "append" mode.

fout = new FileWriter("filename.txt", true);

FileWriter usage reference

Answer 2

Assuming you're using a FileWriter, you can provide true as the second parameter to the FileWriter(java.io.File, boolean) or FileWriter(java.lang.String, boolean)constructor, to indicate that you wish to append to the file, rather than overwriting.

It may be more efficient, however, to append everything to a StringBuilder/StringBuffer beforehand, and only write once.