Room dimensions User input help

Hi ok so i have just started Java Programming i have studied but i am still get a little lost and stuck with the code
I was wondering if anyone could help me with a code that would require user input for the value to be multiplied to get the final answer i am not asking of anyone to do it for me i am simply asking to be pointed in the write direction as to speak

So here is the code for the first project

/*
Name: Reece Baron
Date: 7 Feb 2013
ID: 130830521
Ver 0.0.5
*/
public class Room {
   public static void main(String[] args) {
       int length = 15; // Defines length of the Room
	    int width = 25; //Defines width of the Room
		 int area = length/width; 
		 area = length * width; // Defines Multiplication between the two areas	
		 System.out.println("The length of the room is 15"); //Prints Room length
		 System.out.println("The width of the room is 25"); //Prints Rooms width
		 System.out.println("Which gives you a total floor space of " + area + " feet"); // Displays the total of the two areas multiplied
   }
}

the objective it to have it allow user input to define the length and width