if-statement has the format of: if (condition) statement The statement executes only if the condition is true. Example: Copy #include <iostream> int main() /*from w w w .j a v a2 s . c o m*/ { bool b = true; if (b) std::cout << "The condition is true."; } ...
statement-false } Except that names declared by theinit-statement(ifinit-statementis a declaration) and names declared bycondition(ifconditionis a declaration) are in the same scope, which is also the scope of bothstatement s. std::map<int,std::string>m;std::mutexmx;externboolshared_...
The syntax of an if...else if...else statement in C++ is −if(boolean_expression 1) { // Executes when the boolean expression 1 is true } else if( boolean_expression 2) { // Executes when the boolean expression 2 is true } else if( boolean_expression 3) { // Executes when ...
In this example, the statementy = x/i;is executed ifiis greater than 0. Ifiis less than or equal to 0,iis assigned tox, andf( x )is assigned toy. The statement forming theifclause ends with a semicolon. When nestingifstatements andelseclauses, use braces to group the statements and...
This sample code shows several if statements in use, both with and without else: C++ Copy // if_else_statement.cpp #include <iostream> using namespace std; int main() { int x = 10; if (x < 11) { cout << "x < 11 is true!\n"; // executed } else { cout << "x < 11...
Ladder if-else statement example in C++: program to enter a character and validate whether it is an alphabet or digit, here we are using ladder if-else (multiple if-else) form of conditional statements in C++.
Note: The simple if statement does not have the else keyword. We will discuss this in the sections ahead. The above flowchart gives a general overview of how the decision-making and execution process works when if/ if-else C++ conditional statements are applied. Types Of Conditional Statements...
Exercise? True or False: The condition in anifstatement must be written in uppercase (e.g.,IF). True False Submit Answer » Track your progress - it's free! Log inSign Up
Nested if...else statementThe general form of a nested if...else statement is,if(expression) { if(expression1) { statement-block1; } else { statement-block2; } } else { statement-block3; }if 'expression' is false or returns false, then the 'statement-block3' will be executed, othe...
// if_else_statement.cpp#include<iostream>usingnamespacestd;intmain(){intx =10;if(x <11) {cout<<"x < 11 is true!\n";// executed}else{cout<<"x < 11 is false!\n";// not executed}// no else statementboolflag =false;if(flag ==true) { x =100;// not executed}int*p =new...