How to convert php blob to file
Mar 16, 2023 am 10:47 AM
How to convert php blob to file: 1. Create a php sample file; 2. Through "function blobToFile(blob) {return new File([blob], 'screenshot.png', { type: 'image/jpeg' })} ” method can be used to convert Blob to File.
Use java's File.length() function to get the size of the file
Jul 24, 2023 am 08:36 AM
Use Java's File.length() function to get the size of a file. File size is a very common requirement when dealing with file operations. Java provides a very convenient way to get the size of a file, that is, using the length() method of the File class. . This article will introduce how to use this method to get the size of a file and give corresponding code examples. First, we need to create a File object to represent the file we want to get the size of. Here is how to create a File object: Filef
Hongmeng native application random poetry
Feb 19, 2024 pm 01:36 PM
To learn more about open source, please visit: 51CTO Hongmeng Developer Community https://ost.51cto.com Running environment DAYU200:4.0.10.16SDK: 4.0.10.15IDE: 4.0.600 1. To create an application, click File- >newFile->CreateProgect. Select template: [OpenHarmony] EmptyAbility: Fill in the project name, shici, application package name com.nut.shici, and application storage location XXX (no Chinese, special characters, or spaces). CompileSDK10, Model: Stage. Device
Detailed explanation of the usage of return in C language
Oct 07, 2023 am 10:58 AM
The usage of return in C language is: 1. For functions whose return value type is void, you can use the return statement to end the execution of the function early; 2. For functions whose return value type is not void, the function of the return statement is to end the execution of the function. The result is returned to the caller; 3. End the execution of the function early. Inside the function, we can use the return statement to end the execution of the function early, even if the function does not return a value.
Rename files using java's File.renameTo() function
Jul 25, 2023 pm 03:45 PM
Use Java's File.renameTo() function to rename files. In Java programming, we often need to rename files. Java provides the File class to handle file operations, and its renameTo() function can easily rename files. This article will introduce how to use Java's File.renameTo() function to rename files and provide corresponding code examples. The File.renameTo() function is a method of the File class.
Use java's File.getParent() function to get the parent path of the file
Jul 24, 2023 pm 01:40 PM
Use java's File.getParent() function to get the parent path of a file. In Java programming, we often need to operate files and folders. Sometimes, we need to get the parent path of a file, which is the path of the folder where the file is located. Java's File class provides the getParent() method to obtain the parent path of a file or folder. The File class is Java's abstract representation of files and folders. It provides a series of methods for operating files and folders. Among them, get
Causes and solutions to ConcurrentModificationException exceptions in Java
Jun 25, 2023 am 10:33 AM
In Java, when multiple threads operate a collection object at the same time, a ConcurrentModificationException exception may occur. This exception usually occurs when traversing the collection when modifying or deleting elements. This will cause the state of the collection to be inconsistent, thus throwing abnormal. This article will delve into the causes and solutions to this exception. 1. Causes of Exception Normally, ConcurrentModificationException exception
What is the execution order of return and finally statements in Java?
Apr 25, 2023 pm 07:55 PM
Source code: publicclassReturnFinallyDemo{publicstaticvoidmain(String[]args){System.out.println(case1());}publicstaticintcase1(){intx;try{x=1;returnx;}finally{x=3;}}}#Output The output of the above code can simply conclude: return is executed before finally. Let's take a look at what happens at the bytecode level. The following intercepts part of the bytecode of the case1 method, and compares the source code to annotate the meaning of each instruction in
