Step 1: Click on and save the following file to your hard disk (be sure to use the name as shown below i.e. lake.class): 
lake.class

Footnote: There is already a copy of the class file(s) in your 'cache directory' after you load an applet. Therefore, clearing your cache before loading a page is a great trick to find any hidden .class files that are required for an applet.

Step 2: Use the right mouse button to save the following image (mypic.jpg):



Step 3: Upload the two files to the web host. 

Step 4: Insert the following applet code in the HTML file:


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<center>

   <applet code="lake.class" width="280" height="440">
  <param name="image" value="mypic.jpg"> 
   </applet>

</center>

Footnote (Warning): The lake.class and the image file should be in the same directory as the HTML file. Otherwise, the path info must be in a 'codebase' statement and in the image 'value'. 

For example, at a Homestead site a 'files' directory/folder should be included in the code. Examples: <applet code="lake.class" codebase="files/" width....... etc and <param name="image" value="files/mypic.jpg" 

BTW: Java .class files are case sensitive i.e. Lake.class is not the same as lake.class :( 
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End of Code 
Instructions for using the 'lake.class' applet with another image.

Load the image (jpg or gif) into a program that shows the 'width' and the 'height'. 
Set the width attribute in the applet code to match the image width. 
Set the height attribute to (about) 10 less than DOUBLE the image height. This 'double' height (minus 10) leaves space for the 'lake / mirror' effect. 
Change the image value (name) in the code to match the image name. 
Upload the new image and the lake.class file. Note: All (HTML, image, class) files must be in same directory on the host. 
Summary: (Example) If the image is 300 by 100 then the applet width = 300 (or slightly less). The applet height = 2 x 100 = 200 -10 = 190 (i.e. 10 less than double the height). Now change the applet code to match the new image name, width and height. Then upload all (HTML, image, lake.class) files to the same directory on the host.