java - 如何切换二维数组中的两个字符串

Question

下面是我的代码。在这里，我必须切换 2D 数组中的两个名称，但我不知道如何执行此操作。

有人知道怎么办吗？

    import java.util.Scanner;

    public class Homeworktest {
        public static void main(String[] args) {

            String[][] people = new String[3][3];
            people[0][0] = "April";
            people[0][1] = "Jenny";
            people[0][2] = "Charlie";
            people[1][0] = "Maya";
            people[1][1] = "Daniel";
            people[1][2] = "Felix";
            people[2][0] = "Jack";
            people[2][1] = "Charlotte";
            people[2][2] = "Nick";

            for(int i = 0; i < people.length; i++) {
                String[] subarrays = seatingChart[i];
                for(int y = 0; y < people.length; y++) {
                    System.out.print(subarrays[y] + " ");
                }

                System.out.println();
            }

            public static void switchSeats(int row1, int col1, int row2, int col2) {

            }
        }
    }

Answer 1

要交换两个数组位置的值，首先将一个值保存在临时变量中，将第二个位置的值分配给第一个位置，最后将临时变量的值分配给第二个位置。

public static void switchSeats(String[][] people, int row1, 
                                       int col1, int row2, int col2) {

   String tmp = people[row1][col1];
   people[row1][col1] = people[row2][col2];
   people[row2][col2] = tmp;

}

在上面的代码中，tmp充当临时变量。