Thess Java applets requires the 1.1 event model as found in Netscape 4.6.1 and higher.
This is the same as figure 1 in the OOPSLA '99 proposal.
This is the same configuration of walls and beepers as the previous example but uses four robots to harvest each side. The robots take turns moving, first one then another, round-robin style.
This is the same configuration of walls and beepers as the previous two examples. This time the four robots each their harvest the beepers independently by running in their own threads.