How to find absolute value in scala?

Scala Int abs() method with example The abs() method is utilized to return the absolute value of the given integer value. The absolute value of any number is the magnitude of that number i.e, without any sign. Return Type: It return the absolute value of the given signed integer value.

How do you import math packages to Scala?

If you write Math. , that’s already in scope and it will offer a menu of methods on the Math object. If you write Date , alt-enter should bring up a menu of import options. Choose one and the import statement will be inserted into your code.

What is double in Scala?

In Scala, Double is a 64-bit floating point number, which is equivalent to Java’s double primitive type. The -(x: Double) method is utilized to get the difference of given Double and Double value. Returns – Returns the difference of this value and x.

How do you multiply in Scala?

Function Definition multiply is the name of the function with two variables a and b. We declare another variable c of integer data type, store the result of a*b in this variable and return the computed variable c. Run the program by typing multiply(50,20) in Scala shell and you will get output like res0: Int = 1000 .

How do you write a factorial function Scala?

Scala – Recursion Functions

1. Example. object Demo { def main(args: Array[String]) { for (i <- 1 to 10) println( “Factorial of ” + i + “: = ” + factorial(i) ) } def factorial(n: BigInt): BigInt = { if (n <= 1) 1 else n * factorial(n – 1) } }
2. Command. \>scalac Demo.scala \>scala Demo.
3. Output.

How do you write a factorial function scala?

What is zip in scala?

Advertisements. zip() method is a member of IterableLike trait, it is used to merge a collection to current collection and result is a collection of pair of tuple elements from both collections.

Are there primitive types in Scala?

All the data types listed above are objects. There are no primitive types like in Java. This means that you can call methods on an Int, Long, etc.

How do you define long in Scala?

In Scala, Long is a 64-bit signed integer, which is equivalent to Java’s long primitive type. The *(x: Long) method is utilized to return the product of the specified Long value and Long value.

What is function literal in Scala?

A function literal is an alternate syntax for defining a function. It’s useful for when you want to pass a function as an argument to a method (especially a higher-order one like a fold or a filter operation) but you don’t want to define a separate function.

What is REPL in Scala?

The Scala REPL is a tool (scala) for evaluating expressions in Scala. In interactive mode, the REPL reads expressions at the prompt, wraps them in an executable template, and then compiles and executes the result. Previous results are automatically imported into the scope of the current expression as required.

What is a value class in Scala?

Value classes are a special mechanism in Scala that is used to help the compiler to avoid allocating run time objects. This is done by defining a subclass of AnyVal. The only parameter it excepts is the datatype whose value is to be redefined. This is used to redefine all value types except the hashCode and equals.

What is absolute value in programming?

in: Absolute values. In mathematics, the absolute value (or modulus) of a real number is its numerical value without regard to its sign. So, for example, 3 is the absolute value of both 3 and −3. In computer programming, the mathematical function used to perform this calculation is usually given the name abs().

What is Scala class?

A Scala class is a template for Scala objects. That means, that a class defines what information objects of that class holds, and what behaviour (methods) it exposes.