Sample code: Identify the tone of written text with the Watson Tone Analysis service
Interactive code: When you see Run at the top of a code sample, you can run the code, check the results, make changes, and run it again. When you see Deploy, you can deploy the code into the developerWorks IBM Cloud account. To deploy the code, please sign in.
About this code
This code shows you how to use the Java API for the Watson tone analysis service. Given some text, Watson evaluates the tone, looking for qualities such as the speaker's levels of anger, disgust, joy, fear, and sadness.
The code has three basic sections:
- Default values for the parameters. These are always used by the
public static void main(String args)method. If the call to
public static JsonObject main(JsonObject args)has no parameters or the wrong number of parameters, the default values are used there as well.
public static void main(String args)method. This uses a
JsonParserto convert the default parameters into a JSON object, then it calls...
public static JsonObject main(JsonObject args)method. This is the action the IBM Cloud Functions platform invokes once the code is deployed.
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Lines 58-68 illustrate the Java API for the service. The Watson SDK wraps the JSON returned by the service as a set of objects that are easy to work with in Java. The results indicate the emotional, language, and social tones for the entire document. You can also get the analysis for each sentence in the document. See the overview of the Tone Analyzer service or the github repo for the Java API for more information.
Try changing the text to see what happens.
Using this code once deployed
To use this code once you've deployed it, you must create an instance of the Watson Tone Analyzer service:
To invoke the code, pass a JSON structure that matches the
data object as shown above with the following changes:
endpointfields must be filled in with the credentials for your Personality Insights service instance.
skip_authenticationfield must be
For more information, see the developerWorks tutorial Invoking actions on the IBM Cloud Functions platform.
- An overview of the Watson Tone Analyzer service
- Create a free IBM Cloud account
- Java journeys on developer.ibm.com/code