libraries | 易学教程

Alternative Methods in codenameone

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问题 I have been designing an application using CodeNameOne via Netbeans and have encountered some issues, notably the "cannot find symbol" compile-error. After further research, I discovered that it was due to CNO not supporting certain libraries/misc. I was wondering if there were alternate ways to use the following libraries/perform tasks: (Read from file) import java.io.File; symbol: class File location: package java.io (Throw FileNotFoundException) import java.io.FileNotFoundException; symbol

Java .class files vs. .java file in a jar

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问题 Should you use .class files or .java files in a .jar library? I want to take a class that I've written in a .java file and add it to a jar so I can use it as a library in my tomcat's WEB-INF/lib directory. I understand that jars can contain .class files, .java files, or both (or just about anything else). I'm wondering what is specifically needed at runtime for my jar to be readable by the JVM. The answer to this question told me that .class files will work, but will .java files work as well?

How external libraries work

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问题 I'm just to get my head around how external libraries work in java. Everywhere I look things are unclear. Normally, i understand using a external library involves settings a classpath to the desired class, JAR, etc. My question is how (if I were to build my project into a JAR) would it be able to access the library if it were, to say, be used on another computer? Would the external JAR be included in MY JAR file? Otherwise, how would it be able to access the external JAR? Example would be how

ADS1259程序

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<?xml version="1.0" encoding="UTF-8" standalone="no" ?> 2.1 ### uVision Project, (C) Keil Software SPI FLASH 0x4 ARM-ADS STM32F103RC STMicroelectronics IROM(0x08000000,0x40000) IRAM(0x20000000,0xC000) CPUTYPE("Cortex-M3") CLOCK(12000000) ELITTLE UL2CM3(-S0 -C0 -P0 -FD20000000 -FC1000 -FN1 -FF0STM32F10x_512 -FS08000000 -FL080000 -FP0($$Device:STM32F103RC$Flash\STM32F10x_512.FLM)) 0 $$Device:STM32F103RC$Device\Include\stm32f10x.h $$Device:STM32F103RC$SVD\STM32F103xx.svd 0 0 0 0 0 0 1 ..\..\Output\ SPI_FLASH 1 0 1 1 1 ..\..\Listing\ 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 3 1

How do i use pjsip in my own iOS-project?

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问题 I have sucessfully downloaded the source code for pjsip and compiled it for iphone. I can run the iOS example project that comes with the release. The next step for me is to build my own project that uses the pjsip libraries, this i where i start having problems. I have added the same libraries that the sample project uses to my project. I have also set the "Header Search Paths" under "Build Settings" to "${SOURCE_ROOT}" After that i try to include the pjsip library by typning: #include

Bundling dylibs, headerpad_max_install_names not working

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问题 I have another OSX application problem. I want to bundle in my final application several dylibs, all of them needed by the application and by other dylibs. I change its references using the install_name_tool, but some of the libraries couldn't be changed properly, having this error: install_name_tool: changing install names or rpaths can't be redone for: aLibrary.dylib (for architecture x86_64) because larger updated load commands do not fit (the program must be relinked, and you may need to

Install Gson from Github

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问题 I'm just starting to learn Java and I need Gson for a new project that I'm working on. I feel like I'm missing something with all the installation instructions that I find online--all of them refer to three jar files that I should be able to extract from a zip file. But when I look at Gson on github i can't find any .jar files! https://github.com/google/gson Once I find the jar files, I'm just supposed to include them in the buildpath for the project I'm working on right? I'm working on this

Is there a library repository for C? [duplicate]

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问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: Why there is not a comprehensive c archive network? Everyone knows that C is very small language, it has just language primitives and almost no standard library (no data structures or algorithms). Therefore I have a question, how do I find good C libraries for data structures, algorithms and perhaps system programming? For example, if I need a hash-table, how do I find a good implementation? Or for example, if I

Duplicate classes from androidx and com.android.support

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问题 I recently updated my Android Studio (and I'm pretty sure the Gradle version), and now I've been getting a bunch of errors when trying to compile my project. Here's the one that is plaguing me at the moment: Duplicate class android.support.v4.app.INotificationSideChannel found in modules classes.jar (androidx.core:core:1.0.1) and classes.jar (com.android.support:support-compat:26.1.0) This is followed by lots of similar ones. I tried removing all uses of com.android.support in favor of

Issue with Android Studio Youtube imports. 'YouTubePlayerSupportFragment cannot be resolved'

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问题 I am trying to develop youtube functionality within an application using the Android Studio IDE. This is my code currently: - The issue is surrounding the imports. Now, I have the JAR file imported in the correct spot (I believe): And I have also added it to the build.gradle file as was instructed: dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.android.support:appcompat-v7:21.0.3' compile 'com.google.apis:google-api-services-youtube:v3-rev125-1.19.1' } AND I