java - 数组输出结构

为什么此代码的输出是

island = Fiji
island = Cozumel
island = Bermuda
island = Azores

为什么输出从斐济岛而不是“百慕大”开始？百慕大的array中有0个元素。您能否指出我为什么我的输出有这样的特定顺序。

public class TestArrays {
public static void main (String[] args){
    int y = 0;
    int[] index = new int [4];
    index[0] = 1;
    index[1] = 3;
    index[2] = 0;
    index[3] = 2;


    String[] islands = new String[4];
    islands[0] = "Bermuda";
    islands[1] = "Fiji";
    islands[2] = "Azores";
    islands[3] = "Cozumel";

    int ref;
    while ( y < 4){
        ref = index[y];
        System.out.print("island = ");
        System.out.println(islands[ref]);
        y = y + 1;

    }

}

最佳答案

您的索引顺序为{1、3、0、2}

int[] index = new int [4];
index[0] = 1;
index[1] = 3;
index[2] = 0;
index[3] = 2;

因此它将打印岛[1]，岛[3]，岛[0]，岛[2]

String[] islands = new String[4];
islands[0] = "Bermuda";
islands[1] = "Fiji";
islands[2] = "Azores";
islands[3] = "Cozumel";

斐济，科苏梅尔，百慕大，亚速尔群岛

关于java - 数组输出结构，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/39561371/