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The program can not find the file. Make sure the correct file name is used and that the file is present.

What error messages are shown?
Please copy the full text of the error message and paste it here. It has important info about the error.

Look at the statement on line 25:
the code refers to a file: us.gif in a folder named: image

The program is coded to look in the image folder for the image file. And the image folder must be available to the java command when it executes (ie in the current directory where the java command...

Look at the statement on line 25.
Where is the us.gif file? Is it in the image folder? Is the image folder in the current directory when the code is executed?

Scan through the text of the error message until you find a reference to a line in your code. This part of the message refers to line 25 and says there is a problem there with a URL. That line has...

I get an execution error. Check to make sure you have not missed the execution error.