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Maximum Java heap size of a 32-bit JVM on a 64-bit OS

The question is not about the maximum heap size on a 32-bit OS, given that 32-bit OSes have a maximum addressable memory size of 4GB, and that the JVM's max heap size depends on how much contiguous free memory can be reserved. ...
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How can I use Python to get the system hostname?

... Use socket and its gethostname() functionality. This will get the hostname of the computer where the Python interpreter is running: import socket print(socket.gethostname()) ...
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Is there a portable way to get the current username in Python?

...e that works under both Linux and Windows, at least). It would work like os.getuid : 12 Answers ...
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Technically, why are processes in Erlang more efficient than OS threads?

... There are several contributing factors: Erlang processes are not OS processes. They are implemented by the Erlang VM using a lightweight cooperative threading model (preemptive at the Erlang level, but under the control of a cooperatively scheduled runtime). This means that it is much chea...
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Maven Install on Mac OS X

... OS X prior to Mavericks (10.9) actually comes with Maven 3 built in. If you're on OS X Lion, you won't have java installed by default. Just run java by itself and it'll prompt you to install it. Assuming qualifications a...
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How do I check if I'm running on Windows in Python? [duplicate]

...e platform module but it says it returns 'Windows' and it's returning 'Microsoft' on my machine. I notice in another thread here on stackoverflow it returns 'Vista' sometimes. ...
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Detect iPad users using jQuery?

...e (and can be spoofed). It's preferred to use actual feature-detection in most cases, which can be done through a library like Modernizr. As pointed out in Brennen's answer, issues can arise when performing this detection within the Facebook app. Please see his answer for handling this scenario. R...
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Get path of executable

... There is no cross platform way that I know. For Linux: readlink /proc/self/exe Windows: GetModuleFileName share | improve this answer...
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比尔盖茨“未来生活预言”的科技豪宅(图) - 资讯 - 清泛网 - 专注C/C++及内核技术

...宅局部夜景 -智能照明和温控系统 - 来访的客人会拿到一个智能设备,可以根据自己的喜好来设置光线和室内温度。无论你走到哪个房间,音乐都会跟随着你,因为墙纸背后安装了隐形的扬声器。 -绿色生态建筑的典范 - ...
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How to check if there exists a process with a given pid in Python?

... valid process? I'm getting a pid from a different source other than from os.getpid() and I need to check to see if a process with that pid doesn't exist on the machine. ...