diff --git a/collects/htdch/Examples/draw-multiple-canvas.ss b/collects/htdch/Examples/draw-multiple-canvas.java
similarity index 100%
rename from collects/htdch/Examples/draw-multiple-canvas.ss
rename to collects/htdch/Examples/draw-multiple-canvas.java
diff --git a/collects/htdch/Examples/draw-multiple-worlds.ss b/collects/htdch/Examples/draw-multiple-worlds.java
similarity index 100%
rename from collects/htdch/Examples/draw-multiple-worlds.ss
rename to collects/htdch/Examples/draw-multiple-worlds.java
diff --git a/collects/htdch/Examples/draw-world-close-canvas.ss b/collects/htdch/Examples/draw-world-close-canvas.java
similarity index 100%
rename from collects/htdch/Examples/draw-world-close-canvas.ss
rename to collects/htdch/Examples/draw-world-close-canvas.java