tukar string

import java.util.Scanner;

public class Tugas4{

    public static void tukar(String nama1,String nama2){
        String[] nama1A = nama1.split(" ");
        String[] nama2A = nama2.split(" ");
        System.out.println("\nNama pertama : "+nama1A[0]+" "+nama2A[1]);
        System.out.println("Nama kedua : "+nama2A[0]+" "+nama1A[1]);
    }

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Nama pertama : ");
        String nama1 = input.nextLine();
        System.out.print("Nama kedua : ");
        String nama2 = input.nextLine();
        tukar(nama1, nama2);
    }
}