import java.util.Scanner;
class TestIO
{
	public static void main(String [] args)
	{
		//print "I owe num dollars."
		// the hard way - 3 print statements
		double num = 200.618995;
		System.out.print("I owe ");
		System.out.print(num);
		System.out.print(" dollars.\n");

		//The easy way. String concatenation with "+"
		System.out.println("I owe "+ num+" dollars.");

		//using printf - 2 decimal precision
		System.out.printf("I owe %.2f dollars.\n",num);

		//Create a Scanner for input
		Scanner input = new Scanner (System.in); 
		System.out.print("Enter the value of num : ");
		num = input.nextDouble();

		System.out.println("num is now "+num);
		

	}

}