The request message for the operation addInt(). The response message for the operation addInt(). The request message for the operation addInteger(). The response message for the operation addInteger(). The request message for the operation addLong(). The response message for the operation addLong(). The request message for the operation addFloat(). The response message for the operation addFloat(). The request message for the operation addDouble(). The response message for the operation addDouble(). The request message for the operation addDecimal(). The response message for the operation addDecimal(). Adds two int values. Adds two integer values. Adds two long values. Adds two float values. Adds two double values. Adds two decimal values.