public static void main(String[] args) {
int[] nums = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19}
System.out.print("原数组：")
for (int num : nums) {
System.out.print(num+" ")
}
System.out.print("\n倒序新数组：")
for (int num : reverseArray1(nums)) {
System.out.print(num + " ")
}
}
//1.排序后倒序
public static int[] reverseArray1(int[] nums) {
Arrays.sort(nums)
int[] reNums = new int[nums.length]
for (int i = 0i <nums.lengthi++) {
reNums[i] = nums[nums.length - 1 - i]
}
return reNums
}
//2.Collection 内置的逆序
public static int[] reverseArray2(int[] nums) {
ArrayList<Integer>list = new ArrayList<>()
for (int i = 0i <nums.lengthi++) {
list.add(nums[i])
}
Collections.reverse(list)
int [] reNums = new int[nums.length]
for (int i = 0i <nums.length i++) {
reNums[i] = list.get(i)
}
return reNums
}
可以用Collection.reverse(list)呀，先把你的数组放到List里，再Collection.reverse(list)，然后再从list中拿回来，示例代码：public
static
void
main(String[]
args)
{
String[]
deal
=
new
String[3]
deal[0]
=
"0"
deal[1]
=
"1"
deal[2]
=
"2"
List<String>
list
=
new
ArrayList<String>()
for
(int
i
=
0
i
<
deal.length
i++)
{
list.add(i,
deal[i])
}
Collections.reverse(list)
for
(int
i
=
0
i
<
list.size()
i++)
{
deal[i]
=
list.get(i)
}
for
(int
i
=
0
i
<
deal.length
i++)
{
System.out.println(deal[i])
}
}
