|NO.Z.00014|——————————|BigDataEnd|——|Java&核心类库.V14|——|Java.v14|任务总结|

一、任务总结

### --- 常用的包
~~~     ——>    java.lang、java.util、java.io、java.net、java.sql……

### --- Object类
~~~     ——>    概念、Integer类、Double类、Boolean类、Character类……

### --- 常用的数学处理类
~~~     ——>    Math类、BigDecimal类、BigInteger类……

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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