ImageView doesn't work in JavaFX

Question

not just this, other codes have the same problem. just can\'t use ImageView.

Environment : macOS, IntelliJ

Caused by: java.lang.IllegalArgumentException: Invalid

Answer 1

The Image constructor takes a url as a parameter. If you don't put a protocol in it, then it assumes that the item comes off of the classpath. Obviously, /Users/fangyuan/Desktop/PIC.png won't be in your classpath.

To read from a file instead of the classpath, then stick the file:// protocol in front of the path you want to read:

file:///Users/fangyuan/Desktop/PIC.png

Or

Paths.get("/Users/fangyuan/Desktop/PIC.png").toUri().toString()

which would output the same thing.