What is stack.size() in Scala?
The Stack.size function in Scala returns the number of elements in a Stack object. In short, this function is used to get the current size of the Stack object.
The following illustration shows a visual representation of the Stack.size function.
To use the
Stack.sizefunction, you must include the following module:
scala.collection.mutable.Stack
Syntax
stack_name.size;
// where the stack_name is the name of the stack object
Parameter
The Stack.size function does not require any parameters.
Return value
This function returns the number of elements in the Stack object.
Code
The following code shows how to use the Stack.size function.
import scala.collection.mutable.Stackobject Main extends App {var stack = Stack[Int]()stack.push(0);stack.push(2);stack.push(5);stack.push(3);stack.push(1);println("The following are the elements in the stack: " + stack);println("The following is the size of the stack: " + stack.size);}
Explanation
The push() method is first used to add values to the object stack. The size() method in line returns the number of elements in the object stack.
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