teme.txt

简单使用美观的计算器

-----------------user instruction-------------
///you must compile the Java doncument:Calculator.java before use it putin:"javac Calculator.java"
///make sure the doncument——Calculator.class have built  where you  source file at.then key in the following to run the file:"java Calculator" 
///if there are not any bugs,a handsome calculator emerge in your eyes.