# Example code

Source: [https://docs.qualcomm.com/doc/80-PK177-134/topic/java_example_code.html](https://docs.qualcomm.com/doc/80-PK177-134/topic/java_example_code.html)

The following sample code shows the usage of QESDK Java APIs:

**Required imports**

    import com.qualcomm.qti.qesdkIntf.IQesdk;
    import com.qualcomm.qti.qesdkIntf.IQesdkEventCallBack;Copy to clipboard

      **Declare callback**

    IQesdkEventCallBack eventCallbackHandler = new IQesdkEventCallBack() {
            @Override
            public void onEvent(int opcode, int[] subsys) {
            // Handle QESDK event
            }
    };Copy to clipboard

      **Initialize QESDK**

    IQesdk qesdkManager = IQesdk.createInstance(getApplicationContext());
            int statusId = qesdkManager.init(eventCallbackHandler);Copy to clipboard

      **De-initialize QESDK**

    int ret = qesdkManager.deinit();Copy to clipboard

      **Get supported API**

    IQesdkApiInfo apiInfo = qesdkManager.getSupportedApiInfo();
    // Get class name with highest version
    List<Pair<String, Integer>> featureList = apiInfo.getFeatureList();
    if (featureList != null && !featureList.isEmpty()) {
      for (Pair<String, Integer> it : featureList) {
         String featureName = it.first;
         Integer version = it.second;
        // Get API names with feature name
        List<String> apiNameList = apiInfo.getApiNameList(featureName);
        // Get API raw data with feature name
        List<String> apiJsonList = apiInfo.getFullInfo(featureName);
      }
    }Copy to clipboard

**Initialize          Subsystem**

    ModemManager.init([String license], IQesdkEventCallBack cb )Copy to clipboard

**De-Initialize          Subsystem**

    ModemManager.deinit()Copy to clipboard

**Parent Topic:** [QESDK Java API](https://docs.qualcomm.com/doc/80-PK177-134/topic/java_api.html)

Last Published: Nov 14, 2024

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