Java tutorial
import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.Scanner; public class MainClass { public static void main(String args[]) throws IOException { // Write output to a file. FileWriter fout = new FileWriter("test.txt"); fout.write("2 3.4 5 6 7.4 9.1 10.5 done"); fout.close(); FileReader fin = new FileReader("Test.txt"); Scanner src = new Scanner(fin); // Read and sum numbers. while (src.hasNext()) { if (src.hasNextDouble()) { System.out.println(src.nextDouble()); } else { break; } } fin.close(); } }