JavaµÄ´úÀíģʽÀý×Ó
(1). ´´½¨Ò»¸ö½Ó¿Ú, Òª´úÀíµÄÀàºÍ ´úÀíÀà¶¼½«¼Ì³ÐËü
package stone;
public interface Image {
public void show();
}
(2). ´´½¨Òª±»´úÀíµÄÀà:
package stone;
public class BigImage implements Image {
public BigImage() {
try {
Thread.sleep(3000); // Ä£Äâ´óͼƬҪÓó¤Ê±¼äÀ´¼ÓÔØ
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("loading big image ");
}
public void show() {
System.out.println("show image");
}
}
(3). ´´½¨´úÀíÀà
package stone;
public class TestProxy {
public static void main(String[] args) {
long start= System.currentTimeMillis();
Image image= new ImageProxy(null);
System.out.println("Load time:"+String.valueOf(System.currentTimeMillis()-start));
image.show();
System.out.println("Show time:"+String.valueOf(System.currentTimeMillis()-start));
}
}
(4). ÔËÐвâÊÔÀà,²âÊÔ´úÀíģʽ:
package stone;
public class TestProxy {
public static void main(String[] args) {
long start= System.currentTimeMillis();
Image image= new ImageProxy(null);
System.out.println("Load time:"+String.valueOf(Syste
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