To develop a Java application to generate Electricity bill. Create a class with the following members: Consumer no., consumer name, previous month reading, current month reading, type of EB connection (i.e domestic or commercial). Compute the bill amount using the following tariff.

Sure, here is a simple Java application that meets your requirements:

public class ElectricityBill {
    private String consumerNo;
    private String consumerName;
    private int previousMonthReading;
    private int currentMonthReading;
    private String typeOfConnection;

    public ElectricityBill(String consumerNo, String consumerName, int previousMonthReading, int currentMonthReading, String typeOfConnection) {
        this.consumerNo = consumerNo;
        this.consumerName = consumerName;
        this.previousMonthReading = previousMonthReading;
        this.currentMonthReading = currentMonthReading;
        this.typeOfConnection = typeOfConnection;
    }

    public double computeBill() {
        int unitsConsumed = currentMonthReading - previousMonthReading;
        double billAmount = 0;

        if (typeOfConnection.equals("domestic")) {
            if (unitsConsumed <= 100) {
                billAmount = unitsConsumed * 1;
            } else if (unitsConsumed <= 200) {
                billAmount = 100 + (unitsConsumed - 100) * 2.5;
            } else {
                billAmount = 100 + 250 + (unitsConsumed - 200) * 4;
            }
        } else if (typeOfConnection.equals("commercial")) {
            if (unitsConsumed <= 100) {
                billAmount = unitsConsumed * 2;
            } else if (unitsConsumed <= 200) {
                billAmount = 200 + (unitsConsumed - 100) * 4.5;
            } else {
                billAmount = 200 + 450 + (unitsConsumed - 200) * 6;
            }
        }

        return billAmount;
    }
}

This class has five private members: consumerNo, consumerName, previousMonthReading, currentMonthReading, and typeOfConnection. The constructor initializes these members.

The computeBill method calculates the bill amount based on the type of connection and the number of units consumed. The number of units consumed is calculated as the difference between the current month reading and the previous month reading.

The tariff rates are assumed as follows (you can change them as per your requirements):

• For domestic connections:
  • 1 unit per unit for the first 100 units
  • 2.5 units per unit for the next 100 units
  • 4 units per unit for units above 200
• For commercial connections:
  • 2 units per unit for the first 100 units
  • 4.5 units per unit for the next 100 units
  • 6 units per unit for units above 200

Please note that this is a simple implementation and does not include error checking or handling for invalid inputs.

Sure, here is a simple implementation of the problem in Java:

public class ElectricityBill {
    private String consumerNo;
    private String consumerName;
    private int previousMonthReading;
    private int currentMonthReading;
    private String typeOfConnection;

    public ElectricityBill(String consumerNo, String consumerName, int previousMonthReading, int currentMonthReading, String typeOfConnection) {
        this.consumerNo = consumerNo;
        this.consumerName = consumerName;
        this.previousMonthReading = previousMonthReading;
        this.currentMonthReading = currentMonthReading;
        this.typeOfConnection = typeOfConnection;
    }

    public double computeBill() {
        int unitsConsumed = currentMonthReading - previousMonthReading;
        double billAmount = 0;

        if (typeOfConnection.equals("domestic")) {
            if (unitsConsumed <= 100) {
                billAmount = unitsConsumed * 1;
            } else if (unitsConsumed <= 200) {
                billAmount = 100 + (unitsConsumed - 100) * 2.5;
            } else {
                billAmount = 100 + 250 + (unitsConsumed - 200) * 4;
            }
        } else if (typeOfConnection.equals("commercial")) {
            if (unitsConsumed <= 100) {
                billAmount = unitsConsumed * 2;
            } else if (unitsConsumed <= 200) {
                billAmount = 200 + (unitsConsumed - 100) * 4.5;
            } else {
                billAmount = 200 + 450 + (unitsConsumed - 200) * 6;
            }
        }

        return billAmount;
    }
}

This class has a constructor that initializes all the required fields. The computeBill method calculates the bill amount based on the type of connection and the number of units consumed. The tariff rates are assumed and you can replace them with the actual rates.

You can create an object of this class and call the computeBill method to get the bill amount:

public class Main {
    public static void main(String[] args) {
        ElectricityBill bill = new ElectricityBill("123", "John Doe", 500, 800, "domestic");
        System.out.println("The bill amount is: " +