Add up values from a text file
- by Stanley
Hi Guys I have a text file that contains Amounts at Substring (34, 47) of each line. I need to sum Up all the Values to the End of the File. I have this code that I had started to build but I do not know how to proceed from here:
public class Addup {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws FileNotFoundException, IOException {
// TODO code application logic here
FileInputStream fs = new FileInputStream("C:/Analysis/RL004.TXT");
BufferedReader br = new BufferedReader(new InputStreamReader(fs));
String line;
while((line = br.readLine()) != null){
String num = line.substring(34, 47);
double i = Double.parseDouble(num);
System.out.println(i);
}
}
}
The output is like this:
1.44576457E4
2.33434354E6
4.56875685E3
The Amount is in two decimal Places and I need the result also in the Two decimal Places. What Is the Best way to achieve this?
