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编辑:解决方案来自错误:java.util.zip.ZipException:重复条目在这里不起作用,因为我没有support-v4模块的问题

我正在尝试构建一个使用SpongyCastle的Android项目,但不幸的是它需要javax.naming来自jndi库的包.我添加了jndi甚至javaEE来使它工作,但gradle仍然有运行项目的问题(构建成功)

我的gradle.build文件:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "grylls.cryptotexting"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:design:23.1.1'
    compile 'javax:javaee-api:7.0'
    compile files('lib/jndi-1.2.1.jar')
}

Gradle抛出此错误:

Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'.> 
com.android.build.api.transform.TransformException:java.util.zip.ZipException: 
duplicate entry:javax/mail/AuthenticationFailedException.class

当我试图排除javax.mail来自javax:javaee-api:7.0我:

Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: 
com.android.ide.common.process.ProcessException: …

尝试用C语言编译程序时,我有一些警告:

13:20: warning: excess elements in array initializer [enabled by default]

13:20: warning: (near initialization for ‘litera’) [enabled by default]

22:18: warning: excess elements in array initializer [enabled by default]

22:18: warning: (near initialization for ‘liczba’) [enabled by default]

43:1: warning: format ‘%s’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat]

45:2: warning: format ‘%s’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat]

55:2: warning: format ‘%s’ expects argument of …

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是否可以使用iTextSharp库将xps文档转换为PDF？

我正在尝试创建自己的异常,但遇到了问题......

class MyException extends Exception {
    MyException (String w) { super ( w ); }
};


public class RozkladLiczby{

    private int[] Array;

    RozkladLiczby(int n) throws MyException { 

        try{
            Array = new int[n+2];
        }
        catch(OutOfMemoryException ex){
            throw new MyException ("Not enough memory" );
        }
    }
}

编译器说它无法在catch中找到符号.

RozkladLiczby.java:16: error: cannot find symbol
    catch(OutOfMemoryException ex){
          ^


 symbol:   class OutOfMemoryException
  location: class RozkladLiczby
1 error

我正在尝试将 NTL 库用于 ZZ 类，并且想使用专用函数。不幸的是，在编译过程中我遇到了很多错误：

[100%] Linking CXX executable hpc5
CMakeFiles/hpc5.dir/main.cpp.o: In function `findX(NTL::ZZ, NTL::ZZ, NTL::ZZ)':
/home/rooter/CLionProjects/hpc5/main.cpp:44: undefined reference to `find_xi(NTL::ZZ, NTL::ZZ)'
/home/rooter/CLionProjects/hpc5/main.cpp:57: undefined reference to `chinese_remainder(NTL::ZZ*, NTL::ZZ*, NTL::ZZ)'
/home/rooter/CLionProjects/hpc5/main.cpp:58: undefined reference to `NTL::operator<<(std::ostream&, NTL::ZZ const&)'
CMakeFiles/hpc5.dir/main.cpp.o: In function `NTL::ZZ::ZZ(NTL::ZZ const&)':
/usr/include/NTL/ZZ.h:58: undefined reference to `_ntl_gcopy(void*, void**)'
CMakeFiles/hpc5.dir/main.cpp.o: In function `NTL::ZZ::operator=(NTL::ZZ const&)':
/usr/include/NTL/ZZ.h:73: undefined reference to `_ntl_gcopy(void*, void**)'
CMakeFiles/hpc5.dir/main.cpp.o: In function `NTL::ZZ::operator=(long)':
/usr/include/NTL/ZZ.h:75: undefined reference to `_ntl_gintoz(long, void**)'

我已经在我的 linux mint 上安装了 libntl-dev，添加set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -lntl" )到我的CMakeLists.txt …