What is switch case statement explain with example?
What is switch case statement explain with example?
A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.
Which of the following is used with the switch statement?
5. Which of the following is used with the switch statement? Explanation: Break is used with a switch statement to shift control out of switch.
Can we use or in switch-case?
The switch-case construct is pretty similar to an if-else statement, you can use the OR operator in an if however.
When should you use a switch case instead of ELSE IF statements?
The if-else statement is used to choose between two options, but the switch case statement is used to choose between numerous options.
Which is better switch case or if-else?
A switch statement is usually more efficient than a set of nested ifs. Deciding whether to use if-then-else statements or a switch statement is based on readability and the expression that the statement is testing.
Why switch case is faster than if-else?
Switch is generally faster than a long list of ifs because the compiler can generate a jump table. The longer the list, the better a switch statement is over a series of if statements.
What are the advantages of switch-case?
The main reasons for using a switch include improving clarity, by reducing otherwise repetitive coding, and (if the heuristics permit) also offering the potential for faster execution through easier compiler optimization in many cases.
Can switch-case be used for all data types?
A switch works with the byte , short , char , and int primitive data types. It also works with enumerated types (discussed in Enum Types), the String class, and a few special classes that wrap certain primitive types: Character , Byte , Short , and Integer (discussed in Numbers and Strings).