Scala Set exists() method with example

The exists() method is utilized to test whether a predicate holds for some of the elements of the set or not.

Method Definition: def exists(p: (A) => Boolean): Boolean

Return Type: It returns true if the stated predicate holds true for some elements of the set else it returns false.

Example #1:

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// Scala program of exists() 
// method 
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
        // Creating a list 
        val s1 = Set(1, 2, 3, 4, 5
          
        // Applying exists method 
        val result = s1.exists(y => {y % 3 == 0}) 
          
        // Displays output 
        println(result) 
          
    

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Output:

true

Example #2:

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// Scala program of exists() 
// method 
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
        // Creating a list 
        val s1 = Set(1, 2, 3, 4, 5
          
        // Applying exists method 
        val result = s1.exists(y => {y % 7 == 0}) 
          
        // Displays output 
        println(result) 
          
    

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Output:

false



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