for(i=0;i<10;i++){
String output = output + "Result "+ i +" : "+ ans +"\n"; //ans from other logic
FileWriter f0 = new FileWriter("output.txt");
f0.write(output);
}
but it doesn't work,
please give some help for append or PrintWriter method, i have no idea how to use these methods.
i need file output like
Result 1 : 45 //here 45 is ans
Result 2 : 564856
Result 3 : 879
.
.
.
.
Result 10 : 564
thanks
Your code is creating a new file for every line. Pull the file open outside of the for loop.
FileWriter f0 = new FileWriter("output.txt");
String newLine = System.getProperty("line.separator");
for(i=0;i<10;i++)
{
f0.write("Result "+ i +" : "+ ans + newLine);
}
f0.close();
If you want to use PrintWriter, try this
PrintWriter f0 = new PrintWriter(new FileWriter("output.txt"));
for(i=0;i<10;i++)
{
f0.println("Result "+ i +" : "+ ans);
}
f0.close();
newLine();PrintWriter.printf seems to be the most appropriate
PrintWriter pw = new PrintWriter(new FileWriter("output.txt"));
for (int i = 0; i < 10; i++) {
pw.printf("Result %d : %s %n", i, ans);
}
pw.close();
Just try this :
FileWriter f0 = new FileWriter("output.txt");
for(i=0;i<10;i++){
f0.newLine();
String output = output + "Result "+ i +" : "+ ans; //ans from other logic
f0.append(output);
}
