我可以在Java中从另一个数组引用一个数组的元素吗？
是的，您可以-
int [] myArray1 = {23, 45, 78, 90, 10};
int [] myArray2 = {23, 45, myArray1[2], 90, 10};但是，一旦这样做，第二个数组将存储值的引用，而不是整个数组的引用。出于这个原因，数组中的任何更新都不会影响参考值-
示例
import java.util.Arrays;
public class RefferencingAnotherArray {
public static void main(String args[]) {
int [] myArray1 = {23, 45, 78, 90, 10};
int [] myArray2 = {23, 45, myArray1[2], 90, 10};
System.out.println("Contents of the 2nd array");
System.out.println(Arrays.toString(myArray2));
myArray1[2] = 2000;
System.out.println("Contents of the 2nd array after updating ::");
System.out.println(Arrays.toString(myArray2));
System.out.println("Contents of the 1stnd array after updating ::");
System.out.println(Arrays.toString(myArray1));
}
}输出结果
Contents of the 2nd array [23, 45, 78, 90, 10] Contents of the 2nd array after updating :: [23, 45, 78, 90, 10] Contents of the 1stnd array after updating :: [23, 45, 2000, 90, 10]
热门推荐
10 祝女儿简短祝福语大全
11 大学新年祝福语简短创意
12 元旦适合的祝福语简短
13 朋友出远门祝福语简短
14 初六简短的祝福语
15 祝男孩生日祝福语简短
16 同事调离的祝福语简短
17 拜年红包的祝福语简短
18 妈妈生日祝福语简短励志