How to make immutable variable in scala
To make an immutable variable in Scala, you can use the
val keyword. Here's an example:
val myVariable: Int = 42
In this example,
myVariable is declared as an immutable variable of type
Int and assigned the value
42. Once assigned, the value of
myVariable cannot be changed.
You can also omit the explicit type declaration and let Scala infer the type for you, like this:
val myVariable = 42
In this case, Scala will infer that
myVariable is of type
Int based on the assigned value.
Immutable variables are useful because they provide safety and help prevent accidental modifications to the variable's value.