240 发简信
IP属地:湖北
  • HTTP协议笔记

    HTTP工作原理 HTTP三点注意事项: 每次连接只处理一个请求 只要客户端和服务器知道如何处理的数据内容,任何类型的数据都可以通过HTTP发送...

  • Entity层、DAO层、Service层、Controller层

    Entity层: 用于存放实体类,与数据库中的属性值基本一致,实现getter和setter方法。 一般数据库一张表对应一个实体类,类属性同表字...

  • Java: 显示类型转换byte b = (byte)129

    说明 当把整数赋值给一个byte、short、int、long型变量时,不可以超出这些变量的取值范围,否则必须进行强制类型转换。例如: 输出结果...

  • Java: String copyValueOf(data, offset, count)

    Description This returns a String that represents the character sequence...

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    Final Project:Random Systems

    Back Ground A random walk is a mathematical object which describes a pat...

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    Exercise 13:Frequency Spectrum of Waves on a String

    Background In physics, a wave is an oscillation accompanied by a transfe...

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    Exercise 12:Electric Potential and Fields

    Background Abstract This exercise is about electric potential and fields...

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    Exercise 11:chaotic tumbling of hyperion

    Problem 4.19:Study the behavior of our model for Hyperion for different ...

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    Exercise 10:The precession of the perihelion of Mercury

    摘要: 本次作业研究了水星近日点的进动问题 背景: 公式: Under Newtonian physics, a two-body syste...