Suresh Shahapurkar
javaprogram 26
1 Answer(s)      5 years and 7 months ago
Posted in : Java Beginners

Write a java progtram to create two classes commercial and domestic. override the metod calculatebill() of commercial class(Rs.8 per unit)into domestic class(Rs 6 per unit) to comput electricity bill for both classes.

August 23, 2011 at 1:34 PM

```class Commercial {
int i=0;
Commercial(int a) {
i = a;
}
void calculateBill() {
int units=100;
int cost=100*i;
System.out.println("Commercial Bill is of Rs "+cost);
}
}

class Domestic extends Commercial {
int k=0;
Domestic(int a, int b) {
super(a);
k = b;
}
void calculateBill() {
int units=100;
int cost=100*k;
super.calculateBill();
System.out.println("Domestic Bill is of Rs "+cost);
}
}

class Bill {
public static void main(String args[]) {
Domestic bill = new Domestic(8, 6);
bill.calculateBill();
}
}
```

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