Basic HTML version of Foils prepared September 1 99

Foil 10 Java Applets

From Introduction to Java Language and Applets CPS406/606 Fall Semester 1999 -- September 2 99. by Nancy J. McCracken, Geoffrey C. Fox


1 Java applets are classes written in Java which are intended not to run as stand-alone programs (as applications do) but as subprograms of a browser which is already managing a window.
2 Applets should NOT have a main method but rather init, start, paint etc. for displaying on the browser window
3 Applets are not trusted as a default, so they have several restrictions on running on the client machine
  • no printing or file I/O
  • cannot connect through the network to any machine but its own server
  • any new windows created by the applet have a warning label

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