文档介绍:南华大学
计算机科学与技术学院
软件体系结构与设计模式作业
(2016秋季学期)
学 号: 20144350101
班 级:软件工程1班
姓 名: 刘让洲
任课老师: 蒋良卫
作业内容: 创建型设计模式
日期:2016 Read I mage{)
IrzfllflUPGReader
+ Irz0101 Read I mag e{;)
实例实现代码
图片读取工J —类:lrz0101ImageReaderFactory
package ;
public class lrz0101ImageReaderFactory {
public lrz0101ImageReaderFactory
productReaderFactory(String s) {
lrz0101ImageReaderFactory reader =null;
if(("JPG")){
reader = new lrz0101JpgReaderFactory();
}
else if(("GIF")){
reader = new lrz0101GifReaderFactory();
}
else{
reader =new lrz0101ImageReaderFactory();
}
return reader;
}
}
Jpg 图片读取工厂类:IrzOIOlJpgReaderFactory
package ;
public class lrz0101JpgReaderFactory extends
lrz0101ImageReaderFactory{
public lrz0101ImageReader productImageReader(){
lrz0101ImageReader iread = new
lrz0101GifReader();
return iread;
} }
Gif 图片读取工厂类:IrzOIOlJpgReaderFactory
package ;
public class lrz0101GifReaderFactory extends
lrz0101ImageReaderFactory {
public lrz0101ImageReader productImageReader(){
lrz0101ImageReader iread = new
lrz0101GifReader();
return iread;
}
}
图片读取器类:lrz0101ImageReader
package ;
public class lrz0101ImageReader {
public void readImage(){
}
}
Jpg 图片读取器类:lrz0101JpgReader
package ;
public class lrz0101JpgReader extends
lrz0101ImageReader{
public lrz0101ImageReader productImageReader(){
lrz0101ImageReader iread = new
lrz0101JpgReader();
return iread;
}
}
Gif 图片读取器类:IrzOIOIGifReader
package ;
public class lrz0101GifReader extends
lrz0101ImageReader{
public void readImage(){
.println("Read GIF Image");
}
}
测试类:Test
package ;
public class lrz010lTest {
public static void main(String[] args) {
lrz010lTest test = new lrz010lTest();
lrz0101ImageReaderFactory irf = new
lrz0101ImageReaderFactory();
lrz0101ImageReaderFactory
ir=("JPG");
lrz0101ImageReaderFactory
ir1=("GIF");