Scala Programming: Check two numbers, 4 or 7 present in a given array of integers

Scala Programming Array Exercise-13 with Solution

Write a Scala program to check two numbers, 4 or 7 present in a given array of integers.

Sample Solution:

Scala Code:

object Scala_Array {   
   def test(arr: Array[Int]): Boolean = {
    arr.exists(x => x == 4 || x == 7)
  }   
   def main(args: Array[String]): Unit = {     
    var nums1 = Array(2,4,5,7,9) 
    println("Orginal array:")
    for ( x <- nums1) {
       print(s"${x}, ")        
     }           
    println("\nIf 4 or 7 present in the said array? "+test(nums1))  
    
    var nums2 = Array(2,5,5,6,9) 
    println("Orginal array:")
    for ( x <- nums2) {
       print(s"${x}, ")        
     }          
    println("\nIf 4 or 7 present in the said array? "+test(nums2)) 
    var nums3 = Array(2,5,7,6,9) 
    println("Orginal array:")
    for ( x <- nums3) {
       print(s"${x}, ")        
     }           
    println("\nIf 4 or 7 present in the said array? "+test(nums3))     
  }
}

Sample Output:

Console (F3)
Orginal array:
2, 4, 5, 7, 9, 
If 4 or 7 present in the said array? true
Orginal array:
2, 5, 5, 6, 9, 
If 4 or 7 present in the said array? false
Orginal array:
2, 5, 7, 6, 9, 
If 4 or 7 present in the said array? true

Scala Code Editor :

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