Examples of org.json.JSONArray.optString()

org.json.JSONArray.optString()
Get the optional string value associated with an index. It returns an empty string if there is no value at that index. If the value is not a string and is not null, then it is coverted to a string. @param index The index must be between 0 and length() - 1. @return A String value.

          arColors.add(color);
      }
      JSONArray jcategory = jhit.optJSONArray("category");
      if (jcategory != null)
      {
        String category = jcategory.optString(0);
        if (category != null)
        {
          arCategories.add(category);
        }
      }

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    ArrayList<String> arCategories = new ArrayList<String>();
    for(int i=0; i<jhits.length(); i++){
      JSONObject jhit = jhits.getJSONObject(i);
      JSONArray jcolor = jhit.optJSONArray("color");
      if(jcolor != null){
        String color = jcolor.optString(0);
        if(color != null)
          arColors.add(color);
      }
      JSONArray jcategory = jhit.optJSONArray("category");
      if (jcategory != null)

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          arColors.add(color);
      }
      JSONArray jcategory = jhit.optJSONArray("category");
      if (jcategory != null)
      {
        String category = jcategory.optString(0);
        if (category != null)
        {
          arCategories.add(category);
        }
      }

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    // Process the function body and parameters firstly


    JSONArray jsonFuncParameter = jsonModel.optJSONArray(RelevanceJSONConstants.KW_FUNC_PARAMETERS);
    for(int j=0; j<jsonFuncParameter.length(); j++)
    {
      String paramName = jsonFuncParameter.optString(j);
      dataTable.lls_params.add(paramName);
    }


    dataTable.funcBody = jsonModel.optString(RelevanceJSONConstants.KW_FUNCTION);

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        JSONArray fieldsArray = jsonQuery.optJSONArray(FIELDS_PARAM);
        if (fieldsArray != null)
        {
          for (int i=0; i<fieldsArray.length(); ++i)
          {
            String field = fieldsArray.optString(i, null);
            if (field != null && field.length() != 0)
              fields.add(field);
          }
        }

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      JSONArray array = obj.optJSONArray(field);
      if (array!=null){
      int count = array.length();
      strArray = new String[count];
      for (int i=0;i<count;++i){
        strArray[i] = array.optString(i);
      }
      }
      return strArray;
    }

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      this.name = name;
      this.type = type;
      this.repeating = true;
      this.multivalues = new ArrayList<String>(ja.length());
      for (int i = 0; i < ja.length(); i++) {
        this.multivalues.add(ja.optString(i));
      }
    } else {
      throw new IllegalArgumentException(
          "Can't make a property from this json object");
    }

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      return new ArrayList<String>(0);
    }
    
    List<String> roles = new ArrayList<String>( rolesArr.length() );
    for(int i=0,e=rolesArr.length(); i<e; ++i){
      String role = rolesArr.optString(i);
      if( null != role ) {
        roles.add( role );
      }
    }
    return roles;

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    Set<String> roles = new HashSet<String>();
    
    JSONArray roleArray = json.optJSONArray("roles");
    if( null != roleArray ){
      for(int i=0,e=roleArray.length(); i<e; ++i){
        String role = roleArray.optString(i);
        if( null != role ){
          roles.add(role);
        }
      }
    }

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    Set<String> emails = new HashSet<String>();
    
    JSONArray emailArray = json.optJSONArray(PROP_NAME_EMAILS);
    if( null != emailArray ){
      for(int i=0,e=emailArray.length(); i<e; ++i){
        String email = emailArray.optString(i);
        if( null != email ){
          emails.add(email);
        }
      }
    }

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