Mgmt: update Azure in docs (#15416)

* update Azure in docs

* fix some error

sdk/resourcemanager/README.md

@@ -82,7 +82,7 @@ AzureProfile profile = new AzureProfile(AzureEnvironment.AZURE);
 TokenCredential credential = new DefaultAzureCredentialBuilder()
     .authorityHost(profile.environment().getActiveDirectoryEndpoint())
     .build();
-Azure azure = Azure
+AzureResourceManager azure = AzureResourceManager
     .authenticate(credential, profile)
     .withDefaultSubscription();
 ```
@@ -253,7 +253,7 @@ azure.virtualMachines().listByResourceGroupAsync(rgName)
 You can customize various aspects of the client.
 
 ```java
-Azure azure = Azure
+AzureResourceManager azure = AzureResourceManager
     .configure()
     .withHttpClient(customizedHttpClient)
     .withPolicy(additionalPolicy)
@@ -301,7 +301,7 @@ locate the root issue. View the [logging][logging] wiki for guidance about enabl
 
 Sample code to enable logging in Azure Management Libraries.
 ```java
-Azure azure = Azure
+AzureResourceManager azure = AzureResourceManager
     .configure()
     .withLogLevel(HttpLogDetailLevel.BASIC)
     .authenticate(credential, profile)

sdk/resourcemanager/docs/AUTH.md

@@ -75,15 +75,15 @@ EnvironmentCredential credential = new EnvironmentCredentialBuilder()
 Once the `TokenCredential` and `AzureProfile` are ready, you can move forward with below authenticating code. It helps build http pipeline internally with [default configuration](https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/resourcemanager/azure-resourcemanager-resources/src/main/java/com/azure/resourcemanager/resources/fluentcore/utils/HttpPipelineProvider.java#L43).
 
 ```java
-Azure azure = Azure.authenticate(credential, profile).withDefaultSubscription();
+AzureResourceManager azure = AzureResourceManager.authenticate(credential, profile).withDefaultSubscription();
 ```
 
 The `Authenticated` class provides access to a subset of Azure APIs that do not require a specific subscription. If the profile does not contain a subscription, you can select a subscription via [`Authenticated::subscriptions`](https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/resourcemanager/azure-resourcemanager/src/main/java/com/azure/resourcemanager/AzureResourceManager.java#L200). Similarly, you can select a tenant via [`Authenticated::tenants`](https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/resourcemanager/azure-resourcemanager/src/main/java/com/azure/resourcemanager/AzureResourceManager.java#L207).
 
 ```java
-Azure.Authenticated authenticated = Azure.authenticate(credential, profile);
+AzureResourceManager.Authenticated authenticated = AzureResourceManager.authenticate(credential, profile);
 String subscriptionId = authenticated.subscriptions().list().iterator().next().subscriptionId();
-Azure azure = authenticated.withSubscription(subscriptionId);
+AzureResourceManager azure = authenticated.withSubscription(subscriptionId);
 ```
 
 ## Advanced Authentication
@@ -117,13 +117,13 @@ HttpPipeline httpPipeline = new HttpPipelineBuilder()
 Once your custom configurations are ready, you can move forward with below authenticating code. It would execute the settings you apply in the custom HttpPipeline.
 
 ```java
-Azure azure = Azure.authenticate(httpPipeline, profile).withDefaultSubscription();
+AzureResourceManager azure = AzureResourceManager.authenticate(httpPipeline, profile).withDefaultSubscription();
 ```
 
-If you want to configure part of http pipeline instead of building new one, you may set via `Azure::configure`.
+If you want to configure part of http pipeline instead of building new one, you may set via `AzureResourceManager::configure`.
 
 ```java
-Azure azure = Azure.configure()
+AzureResourceManager azure = AzureResourceManager.configure()
     .withPolicy(customPolicy)
     .withRetryPolicy(customRetryPolicy)
     .withHttpClient(httpClient)

sdk/resourcemanager/docs/MIGRATION_GUIDE.md

@@ -94,7 +94,7 @@ Azure azure = Azure.configure()
 **Equivalent in new version (`com.azure.resourcemanager.**`)**
 
 ```java
-Azure azure = Azure.configure()
+AzureResourceManager azure = AzureResourceManager.configure()
     .withPolicy(new CustomizedPolicy())
     .authenticate(credential, profile)
     .withDefaultSubscription();
@@ -123,7 +123,7 @@ HttpClient client = new OkHttpAsyncHttpClientBuilder()
     .proxy(new ProxyOptions(ProxyOptions.Type.HTTP, new InetSocketAddress("127.0.0.1", 8888)))
     .build();
 
-Azure azure = Azure.configure()
+AzureResourceManager azure = AzureResourceManager.configure()
     .withHttpClient(client)
     .authenticate(credential, profile)
     .withDefaultSubscription();

sdk/resourcemanager/docs/SAMPLE.md

@@ -2,14 +2,14 @@
 
 ### Azure Authentication
 
-The `Azure` class is the simplest entry point for creating and interacting with Azure resources.
+The `AzureResourceManager` class is the simplest entry point for creating and interacting with Azure resources.
 
 ```java
 AzureProfile profile = new AzureProfile(AzureEnvironment.AZURE);
 TokenCredential credential = new DefaultAzureCredentialBuilder()
     .authorityHost(profile.environment().getActiveDirectoryEndpoint())
     .build();
-Azure azure = Azure
+AzureResourceManager azure = AzureResourceManager
     .authenticate(credential, profile)
     .withDefaultSubscription();
 ```

sdk/resourcemanager/docs/THROTTLING.md

@@ -13,7 +13,7 @@ By default, `RetryPolicy` is added to the HTTP pipeline. It will automatically r
 HTTP policy `ResourceManagerThrottlingPolicy` can be added to HTTP pipeline, to provide real-time information on remaining requests, before throttling kick-in.
 
 ```java
-Azure azure = Azure.configure()
+AzureResourceManager azure = AzureResourceManager.configure()
     .withPolicy(new ResourceManagerThrottlingPolicy((response, throttlingInfo) -> {
         // throttlingInfo.getRateLimit()
     }))