package trangle; public class juxing implements Printable{ private int width; private int height; public juxing(int width, int height) { this.width = width; this.height = height; } public int area() { return width * height; } public int length() { return 2 * (width + height); } public void printWay() { System.out.println("矩形面积 : "+area()+"\n矩形周长 : "+length()); } public void printWay(char c) { for (int i = 0; i < width; i++) { for (int j = 0; j < height; j++) { System.out.print(c); } System.out.println(); } } }