顺序结构

import java.util.Scanner;
class E_sequence
{
    public static void main(String[]args)
	{
		double width,height,area,girth;
		Scanner keyIn=new Scanner(System.in);
		System.out.println("ddddddddddddddddddddddddddd");
		width=keyIn.nextDouble();
		System.out.println("ddddddddddddddddddddd");
		height=keyIn.nextDouble();
		area=width*height;
		girth=2*(width+height);
		System.out.println("dddddddddddddddd"+area+"\ndddddddddddddd"+girth);
	}
}