Blog

The logical OR operator (||) returns false only if both operands are false.

Write a C++ program to ask the user to input the electricity amount and calculate the total electricity bill by using the selection control structures according to the given condition: Round the numbers and keep only 2 decimal values. and use compound operators. From 0 to 40 electricity amount, multiply by 0.20 and display “The total electricity bill is =” From 41 to 50 electricity amount, multiply by 0.30 and display “The total electricity bill is =” From 51 to 60 electricity amount, multiply by 0.40 and display “The total electricity bill is =” Anything else display ” Invalid electricity data”

Write a C++ program to ask the user to input the electricity amount and calculate the total electricity bill by using the selection control structures according to the given condition: Round the numbers and keep only 2 decimal values, and use compound operators. From 0 to 50 electricity amount, multiply by 0.50 and display “The total electricity bill is =” From 51 to 60 electricity amount, multiply by 0.70 and display “The total electricity bill is =” From 61 to 70 electricity amount, multiply by 0.80 and display “The total electricity bill is =” Anything else display ” Invalid electricity data”

What is the output of this code:  True is 1 and false is 0

Write a C++ program to ask the user to input the electricity amount and calculate the total electricity bill by using the selection control structures according to the given condition: Round the numbers and keep only 2 decimal values,and use compound operators. From 0 to 20 electricity amount, multiply by 0.30 and display “The total electricity bill is =” From 21 to 30 electricity amount, multiply by 0.40 and display “The total electricity bill is =” From 31 to 40 electricity amount, multiply by 0.50 and display “The total electricity bill is =” Anything else display ” Invalid electricity data

 Logical (Boolean) operators are used to combine logical expressions

In C++, you must declare a variable before using it.

Find the output of the following code:

Write a C++ program to ask the user to input the electricity amount and calculate the total electricity bill by using the selection control structures according to the given condition: Round the numbers and keep only 2 decimal values, and use compound operators. From 0 to 40 electricity amount, multiply by 0.20 and display “The total electricity bill is =” From 41 to 50 electricity amount, multiply by 0.30 and display “The total electricity bill is =” From 51 to 60 electricity amount, multiply by 0.40 and display “The total electricity bill is =” Anything else display ” Invalid electricity data

All variables must be initialized before they are used, but not necessarily during declaration