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Question
Gundamdriver
Hi. I'm learning to write Java applet and I have got some questions.
Take a look of part of the source code of an Applet:
Here are my questions:
1. Why should we "double sum" at the beginning? My book said that it is used to initialize the variable and to be used within the class. But any more reason we should initialize it?
2. For remark 01. Why don't we have to put the variable sum here? Just becoz we already defined that sum is a type of double?
3. What is void? Does it mean "return nothing when the statement is correctly executed"?
Thanks for your kindful help.
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