What is the difference of if-else statement and switch case statement?

In the case of ‘if-else’ statement, either the ‘if’ block or the ‘else’ block will be executed based on the condition. In the case of the ‘switch’ statement, one case after another will be executed until the break keyword is not found, or the default statement is executed.

Can you use a switch statement instead of multiple if-else statements?

switch can replace if / else , but not a series of independent if s where more than one can match.

What is the difference between if and case statements?

Important differences exist between If Then and Case Statements: Each expression following an IF or ELSIF clause may be unrelated to the other expressions in the statement. In a Case Statement, however, a single Boolean expression is compared to a constant in each WHEN clause.

Why switch statement is preferred over series of if-else if statements?

A switch statement is usually more efficient than a set of nested ifs. Deciding whether to use if-then-else statements or aswitch statement is based on readability and the expression that the statement is testing. Prefer switch if the number of cases are more than 5 otherwise, you may use if-else too.

What are the limitations of switch over if statement?

Disadvantages of switch statements float constant cannot be used in the switch as well as in the case. You can not use the variable expression in case. You cannot use the same constant in two different cases. We cannot use the relational expression in case.

Can IF statement be nested?

Yes, both C and C++ allow us to nested if statements within if statements, i.e, we can place an if statement inside another if statement.

Is switch an if statement?

The if statement evaluates integer, character, pointer or floating-point type or boolean type. On the other hand, switch statement evaluates only character or a integer datatype. Sequence of execution is like either statement under if block will execute or statements under else block statement will execute.

Is switch a case statement?

Switch Statement in C/C++ Switch case statement evaluates a given expression and based on the evaluated value(matching a certain condition), it executes the statements associated with it. Basically, it is used to perform different actions based on different conditions(cases).

Which is faster if else or switch?

As it turns out, the switch statement is faster in most cases when compared to if-else , but significantly faster only when the number of conditions is large. The primary difference in performance between the two is that the incremental cost of an additional condition is larger for if-else than it is for switch .

Is switch better than if else?

A switch statement is usually more efficient than a set of nested ifs. Check the Testing Expression: An if-then-else statement can test expressions based on ranges of values or conditions, whereas a switch statement tests expressions based only on a single integer, enumerated value, or String object.