Convert two string list to List of Object use first list index to get the value from Second list-CodePudding

I am slightly confused to get the List of object from two lists of string using map.

Let's take an example: List 1:

var name = arrayListOf("name1","name2","name3")

List 2:

var lastName = arrayListOf("lastName1","lastName2","lastName3")

The data class of Names as below

data class Names(
var name: String, 
var lastName: String
)

Now i want the List which is combination of name and lastName where we use the name index to get the lastName.

The list of Names as output is below:

[Names(name=name1, lastName=lastName1), Names(name=name2, lastName=lastName2), Names(name=name3, lastName=lastName3)]

Request to use the rx kotlin function. By using collection it is easy to solve.

CodePudding user response：

This is a zip operation:

var name = arrayListOf("name1","name2","name3")
var lastName = arrayListOf("lastName1","lastName2","lastName3")
data class Names(
var name: String, 
var lastName: String
)
fun main() {
    println(name.zip(lastName) {n, f -> Names(n, f)} )
}

output

[Names(name=name1, lastName=lastName1), Names(name=name2, lastName=lastName2), Names(name=name3, lastName=lastName3)]

(I don't think you need 'reactive' programming to do this)