/***** Code de MesExemples.com *******/
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
 
 class WriteDoubleToFile {
 
public static void main(String[] args) {
 
String strFilePath = "C://test.txt";
 
try
{
 
FileOutputStream fout = new FileOutputStream(strFilePath);
DataOutputStream dos = new DataOutputStream(fout);
 
double d = 655;
 
dos.writeDouble(d);
 
 
dos.close();
 
}
catch (IOException e)
{
System.out.println("IOException : " + e);
}
 
}
}