我很新奇,只能开始使用Eclipse来实施一些实时的java方案。 我无法找到进口的<编码>javax.realtime,我有错误:
The import javax.realtime cannot be resolved
如何解决这一问题的想法? 我是否需要下载任何额外的一揽子计划或改变一些项目的设置?
一揽子计划不是一揽子计划的组成部分。 你们将需要为这一一揽子方案提供更多的口头档案。
请注意,为了实际从任何 j获得实时业绩。 实时一揽子计划(为 Java提供实际时间规格)几乎肯定也要求1)一种经修改后与 j合的联保机制。 实时一揽子计划,和2)用于实时操作系统。
您目前使用的是哪里? 如果是IBM Web Sphere Real Time(可在: 看上网络Sp Real Time V3 for RTlav),那么你也需要在 j线上具体说明——Xrealtime,以便利用 Java方案。 实时班级。
确实,由于一些重大原因,在实时系统中使用 Java语的现象很普遍。 这些影响包括 Java语设计中固有的非决定性的性能影响,这些设计具有动态的班级负荷,以及Java Rutime Environment(JRE)本身,加垃圾收集器和本地法典汇编。 因此,Java实时规格是一个开放的特点,它使Java语更加广泛地打开大门,并利用语言建立实时系统。
实时(RT)是一个广泛术语,用来描述具有实时世界时间要求的申请。 例如,一个不敏感的用户界面,没有满足用户通用的RT要求。 这类申请常常被描述为软抗逆转录病毒应用。 同一要求可能更明确的措辞为“申请不应超过0.1秒,以回应一个 mo点。 如果要求没有得到满足,则会造成软故障:申请可以继续,使用者虽然不满意,但仍可以使用。
现在,执行《刑事司法法》需要操作系统、专用机器或“法律”和 Java级图书馆的支持。
A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time applications that process data as it comes in, typically without buffer delays.
......
A key characteristic of an RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application s task; the variability is jitter.
重要的是,将垃圾邮件量化,使该系统被视为实时。 从,即:Wikipedia article,我们知道,如果jitter通常受到约束,该系统是软实时。 如果垃圾总会受到约束,该系统很难实时。
通用通用通用公平市价运行系统的标准 Java应用只能满足数百毫米秒的软电离辐射要求。 语言的几个基本方面负责:校对管理、课堂装、假日制汇编和垃圾收集。 其中一些问题可由申请设计人缓解,但只有开展大量工作。
You can download a RT implementation from IBM for Java 8 here.
也可在。
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