You’re doing it correctly. The way to get memory usage is exactly as you described: Runtime.getRuntime().totalMemory() – Runtime.getRuntime().freeMemory() But the reason your program always returns the same memory usage is because you are not creating enough objects to overcome the precision limitations of the freeMemory method. Although it has byte resolution, there is no guarantee … Read more
I randomly started getting this in my project right around the time you made this post which was odd. Do you have Metamask installed as a browser extension? I disabled the extension and the warnings went away. I found this post: https://github.com/MetaMask/eth-phishing-detect/issues/11900 Which potentially suggests that something in our projects are triggering metamasks anti-phishing feature … Read more
Well from my timings it follows if you already have numpy array a you should use a.max (the source tells it’s the same as np.max if a.max available). But if you have built-in list then most of the time takes converting it into np.ndarray => that’s why max is better in your timings. In essense: … Read more
First you need to have retention policy on your annotations so you can read them with reflection @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.TYPE) public static @interface Line { } @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.FIELD) public static @interface Cell { } Second you need to test if the class has the Line annotation with isAnnotationPresent(annotationClass). This method is accessible from java.lang.Class and a … Read more
Copy from nvidia-docker: CUDA images come in three flavors and are available through the NVIDIA public hub repository. base: starting from CUDA 9.0, contains the bare minimum (libcudart) to deploy a pre-built CUDA application. Use this image if you want to manually select which CUDA packages you want to install. runtime: extends the base image … Read more
I never throw NullPointerException. For me, it is one that appears naturally in the code when something goes wrong and that requires a developer to look at what happens. Then (s)he fixes the cause and it doesn’t happen again. I use IllegalStateException to signal that an object is incorrectly configured or that calls are in … Read more
template <unsigned long N> struct Fibonacci { enum { value = Fibonacci<N-1>::value + Fibonacci<N-2>::value }; static void add_values(vector<unsigned long>& v) { Fibonacci<N-1>::add_values(v); v.push_back(value); } }; template <> struct Fibonacci<0> { enum { value = 0 }; static void add_values(vector<unsigned long>& v) { v.push_back(value); } }; template <> struct Fibonacci<1> { enum { value = 1 … Read more
Well, after some digging at the prompt, here’s what I get: stack = inspect.stack() the_class = stack[1][0].f_locals[“self”].__class__.__name__ the_method = stack[1][0].f_code.co_name print(“I was called by {}.{}()”.format(the_class, the_method)) # => I was called by A.a() When invoked: ➤ python test.py A.a() B.b() I was called by A.a() given the file test.py: import inspect class A: def a(self): … Read more
The enum has a backing store, defaulting to int if you don’t specify it. It is possible to directly assign values outside of the defined values: Sport pingPong = (Sport)4; Then you can check for it: if (value == (Sport)4) {} That is why you have the static function Enum.IsDefined() for checking if the actual … Read more
The accepted solution for Reinstalling ALL JDKs was a bit harsh. I too experienced this problem and here is my 2 cents: This problem started happening since I installed JDK 8 and still had JDK 6 installed. I need for different projects I’m working on. I noticed I had both a User and a System … Read more