Scala Map: Calculate sum of values

Scala Map Exercise-12 with Solution

Write a Scala program to create a map and find the sum of all values in the map.

Sample Solution:

Scala Code:

object FindSumOfValuesInMapExample {
  def main(args: Array[String]): Unit = {
    // Create a map
    var color_map = Map("Red" -> 1, "Green" -> 2, "Blue" -> 3, "Orange" -> 4)
   
    // Print the original map
    println("Original map: " + color_map)

    // Find the sum of all values in the map
    val sum = color_map.values.sum

    // Print the result
    println(s"The sum of all values in the map is: $sum")
  }
}

Sample Output:

Original map: Map(Red -> 1, Green -> 2, Blue -> 3, Orange -> 4)
The sum of all values in the map is: 10

Explanation:

In the above exercise,

• First, we create a map "color_map" using the Map constructor and provide key-value pairs.
• To find the sum of all values in the map, we use the values method to obtain a collection of all the values in the map. Then, we use the sum method on the collection to calculate the sum of all values.
• Finally, we print the result using println, including the sum of all values.

Scala Code Editor :

Previous: Find maximum value.
Next: Find average of values.