Can we use range in switch case in Java?

You have to specify all the values (you might take advantage of falling through the cases) and default case.

Can Switch case be used for range?

Yes, we can use a range of values with switch case statement; in this article we are going to discuss the same. For example, if you want to execute same set of statements with a range of numbers, you do not need to write separate case values, you can use range like min_value … max_value.

Which values are not allowed in switch case?

The branch corresponding to the value that the expression matches is taken during execution. The value of the expressions in a switch-case statement must be an ordinal type i.e. integer, char, short, long, etc. Float and double are not allowed.

Can we use array in switch case in Java?

Yes, you can pass an array to a switch.

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How many case labels can be in a single switch in Java?

There can be one or N number of case values for a switch expression. The case value must be of switch expression type only. The case value must be literal or constant. It doesn’t allow variables.

Can we use range in switch case in C?

In C or C++, we have used the switch-case statement. … Here we will see that we can use ranges in the case statement. The syntax of using range in Case is like below − case low … high. After writing case, we have to put lower value, then one space, then three dots, then another space, and the higher value.

What is the syntax for Range function?

The range() is an in-built function in Python. It returns a sequence of numbers starting from zero and increment by 1 by default and stops before the given number. Now that we know the definition of range, let’s see the syntax: range(start, stop, step)

How do you use range in CPP?


  1. #include
  2. using namespace std;
  3. int main ()
  4. {
  5. int arr1 [5] = { 10, 20, 30, 40, 50};
  6. double darr [5] = { 2.4, 4.5, 1.5, 3.5, 4.0 };
  7. // use range based for loop.
  8. for ( const auto &var : arr1 )

How many no of cases can used in switch for c99 version?

Microsoft C doesn’t limit the number of case values in a switch statement. The number is limited only by the available memory. ANSI C requires at least 257 case labels be allowed in a switch statement. The default for Microsoft C is that the Microsoft extensions are enabled.

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Can we use float in switch case in Java?

Switch case allows only integer and character constants in case expression. We can’t use float values. It executes case only if input value matches otherwise default case executes.

Why we can use float in switch case?

Mostly because the floating point numbers are slightly imprecise and take more time on operations than int type variables/numbers. Also since switch deals with cases, it is logically better to have integrally numbered cases rather then designating them floating point numbers.

Does float work with switch?

A float switch is a type of contact liquid level sensor that uses a float to operate a switch. Float switches are commonly used to control other devices such as alarms and pumps when a liquid level rises or falls to a specific point.

Which data type is not used in switch case in Java?

A switch works with the byte , short , char , and int primitive data types. … 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.

Can we use Boolean in switch case?

This is another reason, why switch-case is not for boolean type. There is no default case. According to the JLS section 14.11: for a switch ( Expression ) SwitchBlock : Expression can only be char, byte, short, int, Character, Byte, Short, Integer, String, or an enum type other wise a compile-time error occurs.

Can we use array in switch case?

Yes, you can pass an array to a switch. … An array is a systematic arrangement of objects, usually in rows and columns.

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