answer:I made some modifications to your code to achieve the desired JSON result. Here's the updated code: ```go package main import ( "encoding/json" "fmt" "io/ioutil" "log" "os" "strings" "time" "github.com/gocolly/colly" ) type Info struct { ID int `json:"id"` Images string `json:"images"` } func main() { allInfos := new(Info) start := time.Now() co := colly.NewCollector( colly.AllowedDomains("www.amazon.com", "amazon.com"), ) // GET Images co.OnHTML("imgsrc", func(e *colly.HTMLElement) { imgsrc := e.Attr("src") imgclass := e.Attr("class") if strings.HasPrefix(imgsrc, "https://images-na.ssl-images-amazon.com/images/I/") && imgclass == "" { fmt.Printf("The Array %d %v", len(allInfos.Images), imgsrc+"n") allInfos.Images = append(allInfos.Images, imgsrc) co.Visit(e.Request.AbsoluteURL(imgsrc)) } }) co.Visit("https://www.amazon.com/Bluetooth-FM-Transmitter-Compatible-Smartphones/dp/B088TCSH8T/ref=sr_1_1_sspa?dchild=1&keywords=transmitter&qid=1623860482&sr=8-1-spons&psc=1&smid=A2XMGHKVCX40WB&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFGVEgxTjJLRFdLSkUmZW5jcnlwdGVkSWQ9QTAyNDE0ODkyRlNDWlAzUktPQzJSJmVuY3J5cHRlZEFkSWQ9QTA5MTkwNjgyWVUzQ0RUMTBCTEFFJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==WDY4VktWQlImd2lkZ2V0TmFtZT1zcF9kZXRhaWwmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl") co.OnRequest(func(r *colly.Request) { fmt.Println("Visiting: ", r.URL.String()) }) enc := json.NewEncoder(os.Stdout) enc.SetIndent("", " ") enc.Encode(allInfos) writeJson(allInfos) duration := time.Since(start) fmt.Println(duration.Seconds()) } func writeJson(data *Info) { dataFile, err := json.MarshalIndent(data, "", " ") if err != nil { log.Println("Could not create JSON", err) } ioutil.WriteFile("stocky.json", dataFile, 0666) } ``` I made the following changes: - Instead of using a slice of `Info` structs, I used a single instance of `Info` struct called `allInfos`. - In the `co.OnHTML` callback function, I added the obtained `imgsrc` to `allInfos.Images` using `append`. - I modified the `writeJson` function to accept a pointer to the `Info` struct. This should give you the desired JSON result. Let me know if you have any further questions.,Your JSON result is indeed showing multiple items with duplicate image URLs. This is because you are appending the same `Info` struct to the `AllInfos` slice on every image extraction instead of providing a new instance each time. To fix this, you need to create a new `Info` instance each time a different image is scraped. Here's how you can modify your code: ```go package main import ( "encoding/json" "fmt" "io/ioutil" "log" "os" "strings" "time" "github.com/gocolly/colly" ) type Info struct { ID int `json:"id"` Images string `json:"images"` } var AllInfos Info func main() { start := time.Now() co := colly.NewCollector( colly.AllowedDomains("www.amazon.com", "amazon.com"), ) info := Info{} counter := 0 // GET Images co.OnHTML("imgsrc", func(e *colly.HTMLElement) { imgsrc := e.Attr("src") imgclass := e.Attr("class") if strings.HasPrefix(imgsrc, "https://images-na.ssl-images-amazon.com/images/I/") && imgclass == "" { info.Images = append(info.Images, imgsrc) counter++ if counter == 6 { // Append the `Info` struct as a new item in `AllInfos` and reset the counter AllInfos = append(AllInfos, info) info = Info{} counter = 0 } co.Visit(e.Request.AbsoluteURL(imgsrc)) } }) co.Visit("https://www.amazon.com/Bluetooth-FM-Transmitter-Compatible-Smartphones/dp/B088TCSH8T/ref=sr_1_1_sspa?dchild=1&keywords=transmitter&qid=1623860482&sr=8-1-spons&psc=1&smid=A2XMGHKVCX40WB&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFGVEgxTjJLRFdLSkUmZW5jcnlwdGVkSWQ9QTAyNDE0ODkyRlNDWlAzUktPQzJSJmVuY3J5cHRlZEFkSWQ9QTA5MTkwNjgyWVUzQ0RUMTBCTEFFJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==WDY4VktWQlImd2lkZ2V0TmFtZT1zcF9kZXRhaWwmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbglja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==") co.OnRequest(func(r *colly.Request) { fmt.Println("Visiting: ", r.URL.String()) }) enc := json.NewEncoder(os.Stdout) enc.SetIndent("", " ") enc.Encode(AllInfos) writeJson(AllInfos) duration := time.Since(start) fmt.Println(duration.Seconds()) } func writeJson(data Info) { dataFile, err := json.MarshalIndent(data, "", " ") if err != nil { log.Println("Could not create JSON", err) } ioutil.WriteFile("stocky.json", dataFile, 0666) } ``` With this updated code, your JSON result should now look like the desired output: ```json { "id": 0, "images": "https://images-na.ssl-images-amazon.com/images/I/41EKkSQCU-L._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/511L3hYCClL._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/51kSO5K364L._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/61NvwkbuXUL._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/51hwJpj4OgL._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/51dz9PNWVrL._AC_US40_.jpg" } ``` This is because now each image gets its own `Info` struct and is only appended to the `AllInfos` slice when all 6 images have been scraped for a product., The issue is that you are creating a new `Info` struct and appending it to `AllInfos` every time you find an image. Instead, you should create a new `Info` struct with a new slice of images only when the `id` value changes. To do this, you can keep track of the current `id` and only create a new `Info` struct when the `id` value of the current image is different from the previous one. Here is the modified code: ```go package main import ( "encoding/json" "fmt" "io/ioutil" "log" "os" "time" "github.com/gocolly/colly" ) type Info struct { ID int `json:"id"` Images string `json:"images"` } func main() { AllInfos := make(Info, 0) start := time.Now() co := colly.NewCollector( colly.AllowedDomains("www.amazon.com", "amazon.com"), ) Counter := 0 var currentInfo *Info var theArray 10string co.OnHTML("imgsrc", func(e *colly.HTMLElement) { imgsrc := e.Attr("src") imgclass := e.Attr("class") if imgsrc0:49 == "https://images-na.ssl-images-amazon.com/images/I/" && imgclass == "" { theArrayCounter = imgsrc fmt.Printf("The Array %d %vn", Counter, theArrayCounter) Counter = Counter + 1 co.Visit(e.Request.AbsoluteURL(imgsrc)) if currentInfo == nil || currentInfo.ID != Counter { currentInfo = &Info{ ID: Counter, Images: string{}, } AllInfos = append(AllInfos, *currentInfo) } currentInfo.Images = append(currentInfo.Images, imgsrc) } }) co.Visit("https://www.amazon.com/Bluetooth-FM-Transmitter-Compatible-Smartphones/dp/B088TCSH8T/ref=sr_1_1_sspa?dchild=1&keywords=transmitter&qid=1623860482&sr=8-1-spons&psc=1&smid=A2XMGHKVCX40WB&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFGVEgxTjJLRFdLSkUmZW5jcnlwdGVkSWQ9QTAyNDE0ODkyRlNDWlAzUktPQzJSJmVuY3J5cHRlZEFkSWQ9QTA5MTkwNjgyWVUzQ0RUMTBCTEFFJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==WDY4VktWQlImd2lkZ2V0TmFtZT1zcF9kZXRhaWwmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl") co.OnRequest(func(r *colly.Request) { fmt.Println("Visiting: ", r.URL.String()) }) enc := json.NewEncoder(os.Stdout) enc.SetIndent("", " ") enc.Encode(AllInfos) writeJson(AllInfos) duration := time.Since(start) fmt.Println(duration.Seconds()) } func writeJson(data Info) { dataFile, err := json.MarshalIndent(data, "", " ") if err != nil { log.Println("Could not create JSON", err) } ioutil.WriteFile("stocky.json", dataFile, 0666) } ``` With this modification, the JSON result should be as follows: ```json { "id": 0, "images": "https://images-na.ssl-images-amazon.com/images/I/41EKkSQCU-L._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/511L3hYCClL._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/51kSO5K364L._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/61NvwkbuXUL._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/51hwJpj4OgL._AC_US40_.jpg", "https://images-na.ssl-images-amazon.com/images/I/51dz9PNWVrL._AC_US40_.jpg" } ```

answer:In Rails, you can permit nested objects in your strong parameters by using the `permit` method with a hash of keys. Here's an example of how you can modify your code to permit the `groundtruth` attribute, which is nested inside the `measurement` object: ```arduino params.require(:measurement).permit(:name, groundtruth: :attribute1, :attribute2, ...) ``` In this example, `groundtruth` is a nested object with its own set of attributes. You can replace `attribute1`, `attribute2`, etc. with the actual attribute names of the `groundtruth` object. Here's an example of how your JSON string might look like: ```json { "measurement": { "name": "some name", "groundtruth": { "attribute1": "value1", "attribute2": "value2" } } } ``` In this example, `attribute1` and `attribute2` are the attributes of the `groundtruth` object. When you submit this JSON string to your server, Rails will automatically deserialize it into a hash. The `params.require(:measurement).permit` method will then permit the `name` attribute and the entire `groundtruth` nested object with its attributes. Make sure that the keys in the `permit` method match the structure of your JSON string. If the keys don't match, Rails will ignore the value and set it to `nil` in the database. So, in your case, you can modify your strong parameter like this: ```arduino params.require(:measurement).permit(:name, groundtruth: :attribute1, :attribute2, ...) ``` Replace `attribute1`, `attribute2`, etc. with the actual attribute names of the `groundtruth` object.,To permit nested attributes in Rails strong parameters, you need to specify the attributes of the nested object within an array. In your case, you can use the following code: ```ruby params.require(:measurement) .permit(:name, :groundtruth => :type, :coordinates => ) ``` If you want to permit nested attributes of multiple objects, you can wrap them inside a hash. For example: ```ruby params.require(:foo).permit(:bar, {:baz => :x, :y}) ``` Rails has comprehensive documentation on strong parameters, which you can refer to for further clarification: ActionController::Parameters(http://api.rubyonrails.org/classes/ActionController/Parameters.html#method-i-permit) If you want to dive deeper, you can also take a look at the implementation of `permit` and `strong_parameters` in the Rails source code: strong_parameters.rb(https://github.com/rails/rails/blob/master/actionpack/lib/action_controller/metal/strong_parameters.rb#L246-L247),Permitting nested objects in your strong parameters works exactly the same as permitting regular object parameters. You just need to specify the nested attributes. Here's how you can permit a nested object (`groundtruth` in this case): ```ruby { measurement: { name: "value", groundtruth: { your_nested_field: "your_value" } } } ``` And then you would permit like this: ```ruby params.require(:measurement).permit(:name, groundtruth: :your_nested_field) ``` Remember to replace `your_nested_field` and `your_value` with the actual attributes and values you want to permit from the nested object. If you want the nested object still to be nested, you can use the hash syntax: ```ruby params.require(:measurement).permit(:name, groundtruth: {}) ``` Now, if an invalid nested parameter was passed into the params, an ActionController::ParameterMissing exception will be raised. However, if you want the nested object to validate its attributes too, you can specify extra rules for it in the model: ```ruby class Measurement < ApplicationRecord validates :name, presence: true validates :groundtruth, presence: true end ``` This way, the nested `groundtruth` object will also be validated. Make sure to include the `presence: true` validation for your nested objects' attributes as well, so they don't come up as `null` in the database.

answer:Yes, it is possible to integrate the C code generated from Matlab with your existing Java code in the Android App. You can use the Android NDK (Native Development Kit) to interface with the C code from your Java code. The Android NDK allows you to write parts of your app using native code languages like C or C++. To integrate the C code with your Java code, you can create a JNI (Java Native Interface) bridge that acts as a communication layer between the Java and C code. The JNI bridge allows you to call C functions from Java and vice versa. You can pass initialized values from your Java code to the C code by defining appropriate JNI methods and passing the values as function arguments. Here's an example of how you can set up a JNI bridge between your Java and C code: 1. Define a native method in your Java class: ```java public class MyNativeClass { static { System.loadLibrary("mylib"); } public native void myNativeMethod(int value); // Rest of your Java code } ``` 2. Implement the native method in your C code: ```c #include <jni.h> JNIEXPORT void JNICALL Java_com_example_MyNativeClass_myNativeMethod(JNIEnv* env, jobject obj, jint value) { // Your C code logic // Use the passed value in your algorithm } ``` 3. Compile the C code and generate a shared library: ``` gcc -shared -o libmylib.so -I{JAVA_HOME}/include -I{JAVA_HOME}/include/linux mylib.c ``` 4. Load the shared library in your Java code using `System.loadLibrary("mylib")`. Now, you can call `myNativeMethod` from your Java code and pass an initialized value as an argument. The C code will be executed and you can use the passed value in your algorithm. Alternatively, you can also consider using MATLAB Builder products like MATLAB Builder for Java or MATLAB Builder for .NET to deploy your MATLAB algorithm as a web service. Your Android app can then call this web service to execute the algorithm. Depending on your requirements, this may be a better option. I hope this helps! Let me know if you have any further questions.,Yes, it is possible to integrate C code from MATLAB into your Java code in the Android app. To do this, you can use the MATLAB Coder, which translates MATLAB code into C/C++ code that can be integrated into your Android application. The Android NDK allows you to use C and C++ code in your Android app, making it entirely possible to use the generated C code in your app. To connect an initialized value from your Java code to the C code generated from MATLAB, you will need to pass this value as a parameter to the C code. This is typically done by defining a function in your C code that takes the required parameter and then calls the algorithm you have written in MATLAB. Your Java code can create an instance of this function and pass the parameter to it. Here's a general outline of how this might work: 1. Use MATLAB Coder to compile your MATLAB algorithm into C code. 2. Create a separate C/C++ project using the Android NDK, and add the generated C code to this project. 3. Create a C function in your Android NDK project that takes the initialized value from your Java code as a parameter, and then calls the MATLAB algorithm. 4. In your Java code, create an instance of this C function and pass the initialized value as a parameter. Remember that interfacing with native code from a Java application can be complex, so it may be helpful to consult the Android documentation and resources for working with the NDK. Additionally, it's a good idea to make sure that all components (MATLAB, the generated C code, your Java code, and the Android NDK) are compatible with the version of Android you are using., Yes, you can convert MATLAB code to C code using MATLAB's Coder toolbox, and then integrate that C code with your existing Java code in an Android app. The Android NDK is the right tool for this job, as it allows you to include native C/C++ code within an Android app. Here's a step-by-step guide on how to do this: 1. Convert MATLAB code to C code: Use MATLAB's Coder toolbox to generate C/C++ code from your MATLAB algorithm. For this, you might need to adhere to some restrictions on the MATLAB functions you use and the data types. You can find more information in the MATLAB documentation: <https://www.mathworks.com/help/coder/ug/generate-c-code-from-matlab-code.html> 2. Set up Android NDK with your Android Studio project: a. Download and install Android NDK from the official site: <https://developer.android.com/ndk/downloads> b. In Android Studio, click on "File" -> "New" -> "Import Project". Select the build.gradle file in the app folder of your project. c. Update the build.gradle file to include the necessary NDK configurations in the 'android' block, as shown here: ```groovy android { // ... defaultConfig { // ... externalNativeBuild { cmake { cppFlags "-frtti -fexceptions" arguments '-DANDROID_STL=c++_shared' } } ndk { moduleName "your_module_name" // Update to your actual module name abiFilters 'armeabi-v7a', 'x86', 'arm64-v8a', 'x86_64' } } externalNativeBuild { cmake { path "CMakeLists.txt" // Path to your CMakeLists.txt } } // ... } ``` d. Create a CMakeLists.txt file to include the generated C code and any additional dependencies, like this: ```cmake cmake_minimum_required(VERSION 3.4.1) add_library( # Sets the name of the library. your_module_name # Sets the library as a shared library. SHARED # Provides a relative path to your source file(s). src/main/cpp/your_source_file.cpp ) find_library( # Sets the name of the library. log-lib # Specifies the paths to search for the library. paths /vendor/lib /system/lib ) target_link_libraries( # Specifies the target library. your_module_name # Links the target library to the log library -llog -lm -latomic) ``` 3. Calling the C function from your Java code: Create a Java native interface (JNI) that allows your Java code to interact with your C/C++ code. a. Create a Java class with a native method declaration. For example: ```java public class YourClass { static { System.loadLibrary("your_module_name"); } public native void callCFunction(int value); } ``` b. Write a corresponding C/C++ file with the JNI implementation: ```c++ #include <jni.h> #include "your_source_file.h" // Update to your actual header file extern "C" JNIEXPORT void JNICALL Java_YourClass_callCFunction(JNIEnv* env, jobject /* this */, jint value) { your_C_function(value); } ``` c. Include the C/C++ header file in the CMakeLists.txt: ```cmake include_directories(src/main/cpp) ``` 4. Passing values between Java and C code: To pass values from Java to C, simply change the method signature in the JNI implementation. For example, here we update the 'callCFunction' method to receive an int value from Java: ```c++ extern "C" JNIEXPORT void JNICALL Java_YourClass_callCFunction(JNIEnv* env, jobject /* this */, jint value) { // Convert jint value to int (if necessary) int valueInC = (int) value; your_C_function(valueInC); } ``` 5. Compile and test your Android app. Note that, sometimes, there could be compatibility issues between the generated C code and the Android NDK. You may need to update your algorithm to work around those issues. Here's a link to an official example from Google discussing how to use the NDK and JNI to include native code in Android apps: <https://developer.android.com/ndk/guides/JNI> And, here's a helpful cheat sheet for converting JNI datatypes: <https://docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/types.html>

answer:To resolve this issue, you need to follow these steps: 1. Visit the Heroku website at www.heroku.com(http://www.heroku.com) and log in using the account that is causing the error. 2. Go to the settings page of your application (e.g., if your application is named "rails-demo", go to the settings page of "rails-demo") and check if there are two SSH keys associated with it. 3. Remove the SSH key that is no longer present in your system. 4. Alternatively, you can remove both SSH keys and generate a new one by executing the following commands: ``` -> ssh-keygen -t rsa -> heroku keys:add ``` 5. Upload the new SSH key and then log in to your Heroku account using the following command in your console: ``` -> heroku login ``` 6. Log in with your new account and push the code to your Heroku application. By following these steps, you should be able to resolve the issue and successfully log in with your new account., It looks like the Git remote on your local machine is still associated with your old Heroku account. To fix this, you need to update the remote with the SSH Git URL of your new Heroku app. Here are the steps to do that: 1. First, you need to find the name of your new Heroku app in the Heroku Dashboard. 2. Next, open your local project directory in the terminal. 3. Run `heroku git:remote -a <new-heroku-app-name>`, replacing `<new-heroku-app-name>` with the name of your new Heroku app. 4. Verify that the remote has been updated by running `git remote -v`. You should see something like this: ```bash heroku [email protected]:new-heroku-app-name.git (fetch) heroku [email protected]:new-heroku-app-name.git (push) ``` 5. Now, try pushing your code again with `git push heroku master`. This should resolve the issue and allow you to push your code to Heroku using your new account. If you continue to face any issues, please let me know.,The message you are seeing suggests that your new account, linked to the SSH key, does not have access to the GitHub repository that you're trying to deploy. Even though you've uploaded your SSH key to Heroku, you need to link that key to your specific GitHub repository. Here are the steps to resolve this: 1. Ensure your new Heroku account is linked to the correct GitHub repository. Navigate to 'Account' > 'GitHub Accounts' and press 'Connect to GitHub' if you haven't already. Then, you need to select your GitHub account and grant Heroku the necessary permissions. 2. Also, ensure that your new Heroku account has the requisite permissions to read and deploy code from your GitHub repository. This is where the 'Your account [email protected] does not have access to' comes from. Check the GitHub repository settings for this information. 3. If you have multiple SSH keys in your new account, make sure that the correct key is being used to connect to your GitHub repository. If the key you're using doesn't have permission to access your repository, you'll see this error. 4. Finally, if you've used the 'heroku git:remote' command to specify the remote name, make sure it's correct. A common mistake is forgetting to include 'git' before 'remote', which can result in an error similar to the one you're seeing. Please follow these steps and try pushing your code again. If the problem persists, restart the Heroku CLI and retry.