import java.util.Scanner; public class TestProgram { public static void main() { Scanner in = new Scanner(System.in); String str; double age; System.out.print("How old are you? "); age = in.nextDouble(); in.nextLine(); //consume the newline left over str = String.valueOf(age); //even better str = String.format("%f",age); System.out.printf("You are %s years old\n", str); } }