Scala Int - (x: Int) Method

The Int - (x: Int) method in Scala is used to subtract the integer value x from an integer value. This method is a member of the Int class in Scala and is therefore available on all instances of Int.

Syntax

The syntax of the Int - (x: Int) method is as follows:

def -(x: Int): Int

Where x is an integer value that will be subtracted from the calling integer value.

Examples

val x = 4
val y = 2

val result = x - y // result == 2

In the above example, x is an integer value of 4 and y is an integer value of 2. The x - y expression subtracts y from x, resulting in an integer value of 2 which is assigned to the result variable.

val a = 10
val b = 5

val result = a.-(b) // result == 5

In this example, we are using the same Int - (x: Int) method to subtract b from a, but this time we are calling the method explicitly on the a instance using the dot notation.

Conclusion

In conclusion, the Int - (x: Int) method is a simple yet powerful method that allows you to subtract one integer value from another. It is a fundamental arithmetic operation and is therefore an essential method to understand when working with Scala.