BoxDemo2.java

/*	A program that uses Box class
	call this file BoxDemo.java
*/
class Box{
	double width;
	double height;
	double depth;
	}

class BoxDemo2{
	public static void main(String args[]){
		Box mybox1 = new Box();
		Box mybox2 =new Box();
		double vol;
		
		//assign values to mybox1's instance variables
		mybox1.width = 10;
		mybox1.height = 20;
		mybox1.depth = 15;
		
		//assign values to mybox2's instance variables
		mybox2.width = 3;
		mybox2.height = 6;
		mybox2.depth = 9;

		//compute volume of the mybox1
		vol = mybox1.width * mybox1.height * mybox1.depth;
		System.out.println("Volume is " + vol);

		//compute volume of the mybox1
		vol = mybox2.width * mybox2.height * mybox2.depth;
		System.out.println("Volume is " + vol);
		}
	}