Supposed that, I have a class named of RequestType. In Java, code tends not to have any check for a new object being a null reference: But C++ code tends to check the allocation: Why do we need to check whether requestType is nullptr in C++, but can just use it without such a check in Java? Answer Your premise
Tag: c++
Convert Long to DateTime from C# Date to Java Date
I’ve been trying to read the binary file with Java, and the binary file is written in C#. And some of those data is contain a DateTime data. When DateTime data will be written into the file (in binary), it using DateTime.ToBinary(); on C#. For reading the DateTime data, it will convert first from bytes into long data, using BitConverter.ToInt64(byte[],
CMake could not find JNI
I created a new Android Studio Project with C++ support and did not add anything to it. The project builds, compiles and runs with CMake. I then added the following two lines of code to CMakeLists.txt at the bottom of the file and I get a CMake build error. And this is the error I get when building the project
Need to reference and use a C# dll in Java
I need to reference a .Net dll in java. I have used jni4net libraries for the same. I have followed the steps mentioned in the video below : https://www.youtube.com/watch?time_continue=351&v=8OoSK_RWUe4 I have followed all the steps required to reference jni4net libraries but i get the following runtime Exception: After following all the steps, This is my code: I have tried executing
What is C++ version of Java’s cyclic barrier?
In java, multiple threads can wait all others at a certain point so that they don’t start a new block of codes before all others finish first block: is there an exact or easy convertion to C++? Also with OpenCL, there is a similar instruction: so all neighbor threads wait each other but it is only a constrained C implementation.
What is the equivalent of hashing Java code into C#?
I have a strange problem in getting equivalent hash code from C# code translated into Java. I don’t know, what MessageDigest update method do. It should only update the contents of digest and should compute hash after calling digest. Same thing I am doing in C# with SHAManaged512.ComputeHash(content). But I am not getting same hash code. Following is the Java
Is there any stable serialization method for different languages?
In my project we have an API, and many clients may send transactions to this API. Transactions should be signed. Clients may be written in any language (C++, C#, python, go, whatever), with any CPU …
Grpc.Core.RpcException method is unimplemented with C# client and Java Server
I am having trouble finding the source of this error. I implemented a simple service using protobuf: When using a java client everything works fine, the server receives the request and responds appropriately. When using C# with the same .proto file for generating sources at the client.Login() I get the following errror: Grpc.Core.RpcException Status(StatusCode=Unimplemented, Detail=”Method tourism.RemoteService/Login is unimplemented”). The server
Use custom Manifest file and permission in Unity?
Im currently trying to program a little game for android with Unity3D. Because I want a visible status bar, I modified the AndroidManifest in the Project Folder (C:UsersPublicDocumentsUnity ProjectsProjectNameTempStagingArea) like this : But everytime i generate the APK, unity changes the Android Manifest to this : Unity3D does change my modified Manifests everytime? Answer You are modifying the wrong AndroidManifest
Mutex Locks vs Peterson’s Algorithm?
Do mutex locks ensure bounded waiting condition ? Is it possible if two threads are trying to get hold of a lock, but only one process (just by luck) gets it again and again. Since Peterson’s Algorithm ensures bounded waiting, is it better to use that instead of mutex locks ? Answer It is possible to have unbounded wait with