java,opjecet oriented program

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Oman Oil Company needs to create a bill calculation information. In this process, the operations initiated by the company are customer information, amount calculation of gas consumption, and display of customer details. Write a Java program to create an object class "Gasbill" and do the following operations. Member variables: customerno, customername, current_meter_reading, previous_meter_reading. Units Consumed, Billamount Member Methods : a. Read() To read the values such as customerno, customername. (1 Mark) current_meter_reading, and previous_meter_reading. Get the input through the keyboard. b. Bill_Calc() To calculate Units Consumed and Billamount using the (2 Marks) formula and condition which are given below. Formula: UnitsConsumed current_meter_reading previous_meter_reading Condition: UnitsConsumed Billamount > and 200 UnitConsumed x 0.50 baise >>200 and 500 UnitConsumed x 0.60 baise >501 and