What Are The Limitations Of Switch Case Statement?

Can we write condition in else?

The if statement alone tells us that if a condition is true it will execute a block of statements and if the condition is false it won’t.

But what if we want to do something else if the condition is false.

We can use the else statement with if statement to execute a block of code when the condition is false..

What are the 2 types of iteration?

There are two types of iteration: Count-controlled loops – used for iterating steps a specific number of times. It is used when the number of iterations to take place is already known.

How do you check the condition of a switch case?

Here the mark is defined as 100 and when switch statement is executed, the condition will be checked as follows.case mark <=35. true => (100 <= 35) - this will give the result false. ... case mark >=36 && mark <= 60. true === (100 >=36 && 100 <= 60) ... case mark >= 61 && mark <= 80. ... case mark >= 81.

What will happen if break is not written for a case in switch case in Java?

Switch case statements are used to execute only specific case statements based on the switch expression. If we do not use break statement at the end of each case, program will execute all consecutive case statements until it finds next break statement or till the end of switch case block.

What is the limitation of if else statement?

The statement(s) are executed if the condition is true; if the condition is false nothing happens in other words we may say it is not the effective one. Instead of it we use if-else statements etc.

What Cannot be checked in a switch case statement?

Which of the following cannot be checked in a switch-case statement? … The value of the ‘expression’ in a switch-case statement must be an integer, char, short, long. Float and double are not allowed.

How many cases a switch statement can have?

257 caseStandard C specifies that a switch can have at least 257 case statements. Standard C++ recommends that at least 16,384 case statements be supported! The real value must be implementation dependent.

Why use else if instead of if?

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. Use switch to specify many alternative blocks of code to be executed.

When would you use a switch case?

Use switch instead of if when:You are comparing multiple possible conditions of an expression and the expression itself is non-trivial.You have multiple values that may require the same code.You have some values that will require essentially all of another value’s execution, plus only a few statements.

Can cases in switch statement have conditions?

A statement in the switch block can be labeled with one or more case or default labels. … 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.

What is if and if else statement?

if statement – executes some code if one condition is true. if…else statement – executes some code if a condition is true and another code if that condition is false. … elseif…else statement – executes different codes for more than two conditions. switch statement – selects one of many blocks of code to be executed.

What are the advantages and disadvantages of using switch statement vs if else statements?

More efficient than equivalent if-else statement (destination can be computed by looking up in table). Easier to debug. Easier to maintain. Fixed depth: a sequence of “if else if” statements yields deep nesting, making compilation more difficult (especially in automatically generated code).