In this tutorial, we will discuss the Cpp program to calculate electricity bill
In this post, we will learn how to calculate electricity bill using if condition in the C++ programming language
We can calculate monthly electric power usage in many ways.
In this tutorial, we will write two programs calculating electricity bill in C++ language.
Before we write a program to calculate the electricity bill we must understand electricity charges and rates.
/*1 - 100 unit - 5/= 101-200 unit - 7/= 201-300 unit - 10/= above 300 - 15/=*/
This program can have the following common procedures for completion of this program
program 1
#include <iostream> #include <conio.h> using namespace std; int main() { int unit=315; //declare variable unit //first we understand unit prize /*1 - 100 unit - 5/= 101-200 unit - 7/= 201-300 unit - 10/= above 300 - 15/=*/ if(unit<=100){//when this statement is true cout<<"Bill amount is: "; cout<<unit*5;//this statement is Executed otherwise } else if(unit<=200){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(unit-100)*7;//this statement is Executed otherwise } else if(unit<=300){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(100*7)+(unit-200)*10;//this statement is Executed otherwise } else if(unit>300){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(100*7)+(100*10)+(unit-300)*15;//this statement is Executed otherwise } else{//when all statements are false cout<<"Bill amount is: "; cout<<"No value";//this statement is Executed } getch(); return 0; }
When the above code is executed, it produces the following results
Bill amount is 2425
Program 2
int main() { int unit; //declare variable unit //first we understand unit prize /*1 - 100 unit - 5/= 101-200 unit - 7/= 201-300 unit - 10/= above 300 - 15/=*/ cout<<"Enter the unit of usage: "; cin>>unit; if(unit<=100){//when this statement is true cout<<"Bill amount is: "; cout<<unit*5;//this statement is Executed otherwise } else if(unit<=200){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(unit-100)*7;//this statement is Executed otherwise } else if(unit<=300){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(100*7)+(unit-200)*10;//this statement is Executed otherwise } else if(unit>300){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(100*7)+(100*10)+(unit-300)*15;//this statement is Executed otherwise } else{//when all statements are false cout<<"Bill amount is: "; cout<<"No value";//this statement is Executed } getch(); return 0; }
When the above code is executed, it produces the following results
Enter the unit of usage: 350 Bill amount is: 2950
program 3
#include <iostream> #include <conio.h> using namespace std; int main() { int unit; //declare variable unit //first we understand unit prize /*1 - 100 unit - 5/= 101-200 unit - 7/= 201-300 unit - 10/= above 300 - 15/=*/ cout<<"Enter the unit of usage"; cin>>unit; if(unit>0 && unit<=100){//when this statement is true cout<<"Bill amount is: "; cout<<unit*5;//this statement is Executed otherwise } else if(unit>100 && unit<=200){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(unit-100)*7;//this statement is Executed otherwise } else if( unit>200 && unit<=300){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(100*7)+(unit-200)*10;//this statement is Executed otherwise } else if(unit>300){//when this statement is true cout<<"Bill amount is: "; cout<<(100*5)+(100*7)+(100*10)+(unit-300)*15;//this statement is Executed otherwise } else{//when all statements are false cout<<"Bill amount is: "; cout<<"No value";//this statement is Executed } getch(); return 0; }
When the above code is executed, it produces the following results
Enter the unit of usage: 350 Bill amount is: 2950
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