如何在方法中修改给定数组的值而不修改Java中的实际数组?

I wrote this test,

我写了这个测试,

public class test {     
    public static String[] foo(String[] myArray, int index) {
        myArray[index] = "world";
        return myArray;
    }

    public static void main(String[] args) {
        String[] fooArray = new String[10];

        for (int i = 0; i < 10; i ++) {
            fooArray[i] = "hello";
        }

        foo(fooArray, 9);

        for (int i = 0; i < 10; i ++) {
            System.out.println(fooArray[i]);
        }
    } 
}
public class t