public class Demo05 {
    public static void main(String[] args) {
        //定义一个数组1，2，3，4，5，6，7，8，9，10
        int[] arr = {1,2,3,4,5};
        for (int i = 0; i < arr.length; i++) {
            if(arr[i]%2==0){
                arr[i]=arr[i]/2;
            }else{
                arr[i]=arr[i]*2;
            }
        }
        for (int i = 0; i < arr.length; i++) {
            System.out.println(arr[i]);
        }
    }
}