start with java code: public class TUtil { public static <T> T getT(Object o, int i) { try { return ((Class<T>) ((ParameterizedType) (o.getClass() .getGenericSuperclass())).getActualTypeArguments...
use ParameterizedType in the class to get the generic class of the entity class of the class has the following code: public class Demo<T> { private Class<T> clazz; public T getDemo() throws InstantiationException, Illegal...
description wants to be a data component similar to orm. If you encounter this problem, convert the response of a [] map [string] interface {} into a structure array of the corresponding type . ideas read the source code of orm and some articles on...
Thread 1 and thread 2 get the a method of class A through reflection at the same time, so which part of the method obtained by thread 1 and thread 2 is in memory? Are thread 1 and thread 2 getting the same method address? ...
about the problem of Java, we usually get the results by using the stack as a keyword to the search engine. :) the problem encountered this time is a bit interesting, and the procedure is very simple, so just ask a question. what s wrong with the fol...
is there any other way to dynamically create objects by reflection ...
topic description this is the title on hackerrank https: www.hackerrank.com ch. my code failed the test in the following data. https: hr-testcases-us-east-. related codes Please paste the code text below (do not replace the code with pic...
problem description the problem stems from the use of the requestAnimationFrame () API in a small DEMO, that uses canvas s getContext ( 2d ) object in MDN, he explains: this method tells the browser that you want to execute the animation and req...
because I am studying HTML, but the books may be a little old. I have talked about a lot of tags. I would like to ask iframe, br, hr.. Do you use a lot of labels like waiting? What are the commonly used labels today? ...
I post my code directly: parent component: <v-header :title="title" :menu-display="menuDisplay" :map-display="mapDisplay" :back-display="backDisplay">< v-header> <script> import header from ...
I ran a redis container with the following command: docker run --name redis_env --hostname redis -p 6379:6379 -v $PWD DBVOL redis data: data:rw --privileged=true -d redis redis-server I succ...