I'm currently using FileWriter
to create and write to a file. Is there any way that I can write to the same file every time without deleting the contents in there?
fout = new FileWriter(
"Distribution_" + Double.toString(_lowerBound) + "_" + Double.toString(_highBound) + ".txt");
fileout = new PrintWriter(fout,true);
fileout.print(now.getTime().toString() + ", " + weight + ","+ count +"\n");
fileout.close();
Pass true
as a second argument to FileWriter
to turn on "append" mode.
fout = new FileWriter("filename.txt", true);
FileWriter usage reference
From the Javadoc, you can use the constructor to specify whether you want to append or not.
public FileWriter(File file,
boolean append)
throws IOException
Constructs a FileWriter object given a File object. If the second
argument is true, then bytes will be
written to the end of the file rather
than the beginning.
You can open the FileWriter in append mode by passing true
as the second parameter:
fout = new FileWriter("Distribution_" + ... + ".txt", true);
You may pass true as second parameter to the constructor of FileWriter to instruct the writer to append the data instead of rewriting the file.
For example,
fout = new FileWriter(
"Distribution_" + Double.toString(lowerBound) + "" + Double.toString(_highBound) + ".txt",true);
Hope this would solve your problem.