java 针式打印_JAVA针式打印机打印整理 java接口打印机

/**
 * 墨盒的接口
 * @author Administrator
 */
public interface InkBox {


    /**
     * 定义墨盒的颜色标准
     * @return 墨盒的颜色
     */
    public String getColor();
}

/**
 * @author Administrator
 */
public class ColorBox implements InkBox {

    @Override
    public String getColor() {
        return "黑白";
    }
}

 

/**
 * @author Administrator
 */
public class GrayBox implements InkBox {
    @Override
    public String getColor() {
        return "彩色";
    }
}

/**
 * 纸张的接口
 * @author Administrator
 */
public interface Paper {
    public String getPaperSize();

}

/**
 * @author Administrator
 */
public class A4 implements Paper{
    @Override
    public String getPaperSize() {
        return "A4";
    }
}

 

/**
 * @author Administrator
 */
public class B5 implements Paper{
    @Override
    public String getPaperSize() {
        return "B5";
    }
}

/**
 * @author Administrator
 */
public class PrinterTest {
    public static void main(String[] args) {
        /*准备墨盒*/
        InkBox colorBox = new ColorBox();
        /*准备纸张*/
//        Paper A4 = new A4();
//        Printer printer = new Printer();
//        printer.print(colorBox,A4);
//        /*实例化打印机*/
//
//        InkBox GrayBox = new GrayBox();
//        Paper B5 = new B5();
//        printer.print(GrayBox,B5);

        Paper A4 = new B5();
        Printer printer = new Printer();
        printer.print(colorBox,A4);
        /*实例化打印机*/

        InkBox GrayBox = new GrayBox();
        Paper B5 = new A4();
        printer.print(GrayBox,B5);
    }
}

运行结果：