In certain time-oriented or event-oriented occasions,
student can get better understanding if
the page supplies two or more comparative results of different time or different
event on the same page at the same time. The multiple screen dumps of the
separate executions are carefully merged side by side to give
this kind of comparative view as shown in Figure-Java2.
In Figure-java2, a program called TwoThreadTest is executed twice.
The two screen dumps of the result are combined for comparative examination.
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