import java.io.File; import java.util.Scanner; class ask { public static void main (String [] args) throws Exception { Scanner kb = new Scanner(System.in); System.out.println("Which file you want: "); String imput = kb.next(); int a,b,c; Scanner fileIn = new Scanner(new File( (String)imput )); a = fileIn.nextInt(); b = fileIn.nextInt(); c = fileIn.nextInt(); fileIn.close(); System.out.println(a + " + " + b + " + " + c + " = " + (a+b+c)); } }