Key Concepts

Review core concepts you need to learn to master this subject

Conditional Statements

Switch Statements

Loops

Break and Continue

if Statement

else Clause

Relational Operators

else if Statement

Conditional Statements

int temperature = 60;

if (temperature < 65) {
  std::cout << "Too cold!";
}
else if (temperature > 75) {
  std::cout << "Too hot!";
}
else	// brackets may be omitted here
  std::cout << "Just right...";

Conditional statements are used to control the flow of code execution by testing for a condition for truth.

  • if statements execute code only if the provided condition is true.
  • else statements execute code only if the provided condition in the if statement is false.
  • one or more else if statements can be added in between the if and else to provide additional condition(s) to check.

Some useful tricks with conditional statements:

  • It is possible to condense an if-else expression into a single statement using the following syntax:
    variable = (condition) ? condition_is_true : condition_is_false;
  • Curly brackets { } may be omitted if there is only a single statement inside a conditional statement.

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