This sample demonstrates the use of Google Cloud Translate API for translating and detecting language text.

This sample requires you to have Java8.

This sample uses the Apache Maven build system. Before getting started, be sure to download and install it. When you use Maven as described here, it will automatically download the needed client libraries.

This sample uses API Key for authentication.

• Visit the Google Cloud Console and navigate to:

 API Manager > Credentials > Create credentials > API Key

• Set the environment variable GOOGLE_API_KEY

 export GOOGLE_API_KEY=<YOUR_PROJECT_API_KEY>

To build the sample, we use Maven.

mvn clean compile assembly:single

We can then run the assembled JAR file with the java command. The variable $COMMAND takes three values langsupport, detect and translate.

JAR_FILE=target/translate-1.0-jar-with-dependencies.jar
java -jar $JAR_FILE <detect|translate|langsupport> <text>
    <optional_source> <optional_target>

Example Usage:

INPUT="A quick brown fox jumped over a lazy dog."
SOURCE_LANG="en"
TARGET_LANG="fr"

Translate API Features:

• List the languages supported by the API

  java -jar $JAR_FILE langsupport
  

• List the languages supported for given target language

  java -jar $JAR_FILE langsupport $TARGET_LANG
  

• Detect input text language

  java -jar $JAR_FILE detect "$INPUT"
  

* Translate input text (with options)

java -jar $JAR_FILE translate "$INPUT" java -jar $JAR_FILE translate "$INPUT" $SOURCE_LANG $TARGET_LANG