If And Else Conditional Structure In C++

If is a keyword, which is use as a conditional operator. If keyword execute the statement only if condition is fulfilled.

if (condition) statement.

If-else

When if condition are false then the statement of else condition can execute

if (condition) statement1 else statement2.

In this code “a=10”,”b=9” there are not equal , so “if(a==b)” condition is not true .
the output is….

If-else-if

When 1st if condition can false then it execute else. If we want we can add more if condition with else.
if (condition) statement 1 else if (condition) statement 2 else.

In this code “a=10”,”b=9” there are not equal , so “if(a>b)” condition is not true .
the output is….

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Input & Output In C++ (Basic)

Cout<<”Print sentence”; This statement is use to print out any kinds of sentence or string type values. Cout<<345; This statement is use to print out any kinds of numeric numbers, without change. Cout<<variable; This statement is use to print the value of variable. The value of the which variable we want to print, It is need to write that variable on variable place.

Switch, Case, Default Statements In C++

Switch case is uses as alternative of if….else. When we need to use long term of if…else then we use switch case for reducing program execution time. syntax: Switch(variable){ Case value 1: Statement; Break; Case value 2: Statement; Break;

do...while loop in C++

The do while loop is very similar to while loop . In the while loop first check final condition then execute the statement. But in the do while loop first execute the statement then check the final condition. Syntax: Initialization; Do{ increment/decrement; } while(Final condition)

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