Compiles which with java (adds based on the GUI arithmetic
mathematical operations, reduces, while, eliminates) the calculator.
1. syntheses use a swing package of vessel class and the module class
design a reasonable contact surface; 2. can carry on processing to the
trueing data; 3. can complete adds, reduces, while, eliminates four
basic functions; 4. refers to in the Windows appendix the calculator
outward appearance and the function
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