C++ While Loop
C++ Loops Loops can execute a block of code as long as a specified condition is reached. Loops are handy because they save time, reduce errors, and they make code more readable.
Tag c++ string
C++ Switch
C++ Switch Statements Use the switch statement to select one of many code blocks to be executed. Syntax switch(expression) { case x: // code block break; case y: // code block break; default:…
C++ If … Else Examples
Real Life Example This example shows how you can use if..else to “open a door” if the user enters the correct code : Example int doorCode = 1337; if (doorCode == 1337) { cout << “Correct code.\nThe door is…
C++ Short Hand If Else
Short Hand If…Else (Ternary Operator) There is also a short-hand if else, which is known as the ternary operator because it consists of three operands. It can be used to replace multiple lines of code with a single line, and…
C++ Else If
The else if Statement Use the else if statement to specify a new condition if the first condition is false. Syntax if (condition1) { // block of code to be executed if condition1 is true } else if (condition2)…
C++ Else
The else Statement Use the else statement to specify a block of code to be executed if the condition is false. Syntax if (condition) { // block of code to be executed if the condition is true } else…
C++ If … Else
C++ Conditions and If Statements You already know that C++ supports the usual logical conditions from mathematics: Less than: a < b Less than or equal to: a <= b Greater than: a > b Greater than or equal to:…
C++ Boolean Examples
Real Life Example Let’s think of a “real life example” where we need to find out if a person is old enough to vote. In the example below, we use the >= comparison operator to find out if the age…
C++ Boolean Expressions
Boolean Expression A Boolean expression returns a boolean value, which is either 1 (true) or 0 (false). This is useful for building logic and finding answers. You can use a comparison operator, such as the greater than (>) operator, to…