1 int arr[] = new int[5];
2 System.out.println("请输入5个数");
3 Scanner input = new Scanner(System.in);
4
5 for (int i = 0; i < arr.length; i++) {
6 arr[i] = input.nextInt();
7 }
8 int num = arr[0];
9 int i = 0;
10 for (; i < arr.length; i++) {
11 if (num <= arr[i]) {
12 num = arr[i];
13 } else {
14 break;
15 }
16 }
17 if (i >= arr.length)
18 System.out.println("是递增数列");
19 else{
20 System.out.println("不是递增");
21 }
22
23 }
public static void main(String[] args) {
// 解法二
int arr[] = new int[5];
System.out.println("请输入5个数");
Scanner input = new Scanner(System.in);
for (int i = 0; i < arr.length; i++) {
arr[i] = input.nextInt();
}
boolean flag = true;
for (int i = 0; i < arr.length - 1; i++) {
if (arr[i] > arr[i + 1]) {
flag = false;
break;
}
}
if (flag == true)
System.out.println("是递增数列");
else {
System.out.println("不是递增");
}
}
