之前一直以为传数组和基本类型都是传的值,今天做题时发现传数组传的其实是引用。
public class Tests {
public static void main(String[] args) {
int[] s = {
1,
2,
3,
4,
5 };
change1(s);
for (
int i : s) {
System.
out.print(
" " + i);
}
System.
out.println();
change2(s);
for (
int i : s) {
System.
out.print(
" " + i);
}
System.
out.println();
}
private static void change1(
int[] s) {
s[
0] =
6;
s[
1] =
7;
}
private static void change2(
int[] s) {
int[] b = {
5,
4,
3,
2,
1 };
s = b;
}
}
输出内容
6 7 3 4 5 6 7 3 4 5
转载请注明原文地址: https://ju.6miu.com/read-26168.html