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The if...else statement is used to run one block of code under certain conditions and another block of code under different conditions. In this tutorial, we will learn C++ if, if…else and nested if…else with the help of examples.
C++ has the following conditional statements: Use if to specify a block of code to be executed, if a specified condition is true. Use else to specify a block of code to be executed, if the same condition is false. Use else if to specify a new condition to test, if the first condition is false.
Jan 11, 2024 · Syntax of if-else statement in C/C++ language is: if (Boolean expression) { // Statement will execute only // if Boolean expression is true } else { // Statement will execute only if // the Boolean expression is false } Hence we can conclude that only one of the block
Oct 17, 2023 · The else clause of an if...else statement is associated with the closest previous if statement in the same scope that doesn't have a corresponding else statement. Example. This sample code shows several if statements in use, both with and without else:
Jun 18, 2024 · If the else part of the if statement is present and statement-true is also an if statement, then that inner if statement must contain an else part as well (in other words, in nested if statements, the else is associated with the closest if that does not have an else).
Syntax. The syntax of an if...else statement in C++ is −. if(boolean_expression) { // statement(s) will execute if the boolean expression is true. } else { // statement(s) will execute if the boolean expression is false. }
Mar 22, 2024 · The simplest kind of conditional statement in C++ is called an if statement. An if statement allows us to execute one (or more) lines of code only if some condition is true. The simplest if statement takes the following form: if (condition) true_statement; For readability, this is more often written as following: if (condition) true_statement;
Mar 26, 2021 · The if-else statement in C++ is one of the basic ways to control your program flow. From tasks as simple as exiting your program early if there’s no input, to deciding what business logic to run on a massive amount of data, the if-else statement can be the right tool for the job.
The most basic kind of conditional statement in C++ is the if statement. An if statement takes the form: if (condition) true_statement; or with an optional else statement: if (condition) true_statement; else false_statement; If the condition evaluates to true, the true_statement executes.
Sep 11, 2017 · If else statement in C++. Sometimes you have a condition and you want to execute a block of code if condition is true and execute another piece of code if the same condition is false. This can be achieved in C++ using if-else statement. This is how an if-else statement looks: if(condition) { Statement(s); } else { Statement(s); }
