In Scala TreeSet class, the exists() method is utilized to check whether a predicate holds for any of the elements of the TreeSet.
Method Definition: def exists(p: (A) => Boolean): Boolean
Return Type: It returns true if the predicate holds true for any of the elements of the TreeSet or else returns false.
Example #1:
// Scala program of exists() // method // Import TreeSet import scala.collection.mutable._ // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating TreeSet val t1 = TreeSet(1, 3, 2, 7, 6, 5) // Print the TreeSet println(t1) // Applying exists() method val result = t1.exists(x => {x % 7 == 0}) // Displays output println("Element divisible by 7 exists: " + result) } } |
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Output:
TreeSet(1, 2, 3, 5, 6, 7) Element divisible by 7 exists: true
Example #2:
// Scala program of exists() // method // Import TreeSet import scala.collection.mutable._ // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating TreeSet val t1 = TreeSet(1, 3, 2, 7, 6, 5) // Print the TreeSet println(t1) // Applying exists() method val result = t1.exists(x => {x == 10}) // Displays output println("Element 10 exists: " + result) } } |
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Output:
TreeSet(1, 2, 3, 5, 6, 7) Element 10 exists: false
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