Difficulty Comparing Two Arrays In Kotlin-CodePudding

Hi I can't seem to compare these two arrays on Kotlin.

var temp = ingredientsList.toArray()
var temp2 = chickenTikkaMasala.get(0).ingredients
if(ingredientsList.toArray().contentEquals(chickenTikkaMasala.get(0).ingredients)) {
   Toast.makeText(this, "Chicken Tikka Worked", Toast.LENGTH_SHORT).show()
}

CodePudding user response：

The contentEquals function will only return true if the arrays contain the same elements in the same order. Your arrays doesn't have the same order. From the docs:

/**
 * Returns `true` if the two specified arrays are *structurally* equal to one another,
 * i.e. contain the same number of the same elements in the same order.
 *

CodePudding user response：

If you are only interested whether an item exists in the collection, then you really deal with sets here, not lists or arrays. So you need to compare them as sets:

ingredientsList.toSet() == chickenTikkaMasala.get(0).ingredients.toSet()