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KOTLIN - REVERSE A LIST


How to reverse a List?


Reversal of a List can be done using 'reverse()' method. It is independent of the alphabets.And is not a sort. It is just a reversal.


Example :



fun main() {
    var x = mutableListOf("Mohan", "Kriti", "Salim")
    x.reverse()
    println("The List in reversed order is "+x)
}


Output :



 The List in reversed order is [Salim, Kriti, Mohan]

So, in the above code we have created a 'List' and initialised to the variable 'x'.


var x = mutableListOf("Mohan", "Kriti", "Salim")

Below is how the values are positioned in the List,


java_Collections

Then we have used the 'reverse()' Function to reverse the elements of the List 'x'.


x.reverse()

And the List 'x' gets sorted in reverse order with 'Salim' as the first value, 'Mohan' second and 'Kriti' as the third.


java_Collections

And we get the below output.


The List in reversed order is [Salim, Kriti, Mohan]