The indexOf() method is utilized to check the index of the element from the stated list present in the method as argument.
Method Definition: def indexOf(elem: A, from: Int): Int
Return Type: It returns the index of the element present in the argument.
Example #1:
// Scala program of indexOf() // method // Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating a list
val m 1 = List( 3 , 6 , 2 , 9 , 21 )
// Applying indexOf method
val result = m 1 .indexOf( 9 )
// Displays output
println(result)
}
} |
Output:
3
Example #2:
// Scala program of indexOf() // method // Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating a list
val m 1 = List( 3 , 6 , 2 , 9 , 21 )
// Applying indexOf method
val result = m 1 .indexOf( 3 )
// Displays output
println(result)
}
} |
Output:
0