Introduction to If else Statement C++

If you are a C++ developer and want to build on the rich collection of open-source libraries, then the If else Statement C++ block of code is a way to create robust programs to solve problems.

Indentation and formatting in c++ program

The indentation is how the programmer deals with how to write his code. The programmer makes spacing between the statement of the code.

Indentation is used to create a hierarchy of the code. It is essential to indent the code because it makes it easier for humans to read and understand.

Indenting and formatting mean nothing for the execution of the program. The compiler executes the program without errors or warnings, even when we write the code in one line.The difference is only in the readability of the code when writing the code itself.

The programmer returns to update or make changes in the code easily when the program is readable. That means the programmer should make indentations and formatting when writing his program.

There are no exact rules in formating and indentation. The programmer makes their program well readable in their way. The question is primarily subjective.

What is the if statement?

• The if statement is a programming language command used to execute a group of statements only when certain conditions are met.
• The if statement is a programming statement used to specify the condition under which a particular block of code will be executed.
• The expression in an if statement must evaluate to either true or false. If the expression evaluates to true, then the statements in the then-clause are executed; otherwise (if false), the statements in the else-clause are executed.
• if statements are made up of three parts: a condition, an “if” clause and an “else” clause. The condition is the part that decides whether or not the code inside the if statement should execute. The “if” clause executes if the condition is true, and the “else” clause executes if it is false.

If else Statement C++

A condition is a statement that evaluates to either true or false. Conditions are used in C++ programming to control the flow of program execution.

If statements allow the programmer to make decisions based on conditions. The if statement can be used in any situation where there is a need for a decision, such as choosing between two alternatives, selecting one of many options, or determining whether some code should be executed.

The if statement consists of an expression and one or more statements that are executed when the expression evaluates to true.

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The syntax for an if statement is:

if (expression) {}An example of an if statement could be: If (x > 10){y = x*2;z = y+1;}

Example 1 of code using If else Statement C++

The code of the program

The code of the program

#include<iostream>using namespace std;int your_grade;int main() {cout << endl;cin >> your_grade;cout << endl;if (your_grade >= 15) {cout << “your grade is great ” << your_grade << “out of 20” << endl;} else {cout << “your grade is ” << your_grade << endl;}}

The output of the program

Else importance on If else Statement C++

The else statement is a valuable addition to the if statement. It defines what will happen if the if statement’s condition is false.

This is a straightforward yet powerful concept. If we want to make sure that we are covering all possibilities, then it would be wise to include an else section in our conditional statements.

The else statement works by checking for a condition opposite the if statement. If this condition is true, it will execute the code and create an output with the first statement.

Example 2 of code using If else Statement C++

The code of tje program

The code of tje program

#include<iostream>using namespace std;int random_number;int main() {cout << endl;cin >> random_number;cout << endl;if (random_number < 10) {cout << “random number is a ” << random_number << “. It is a single digit number” << endl;} else {cout << “random number is a ” << random_number << “. It is a multi digit number” << endl;}}

The output of the program

Conclusion

We can use If else Statement C++ to solve problems in various fields, including math, science, engineering, and economics. When you know how to use the If else Statement C++, you improve your capability to solve programming problems