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数组的反转和自身反转

    public static void main(String[] args) {
        //给新的数组赋值
        int[] arr1 = {1,2,3,4,5,6};
        int[] arr2 = new int[arr1.length];

        for (int i = 0; i < arr1.length; i++) {
            arr2[i]=arr1[arr1.length-i-1];
        }
        System.out.println(Arrays.toString(arr2));

        //自身赋值
        test();
    }
    public static void test(){
        int[] arr3 = {1, 2, 3, 4, 5, 6};
        int min = 0;
        int max = arr3.length - 1;
        for (int i = 0; min < max; min++, max--) {
            int temp = arr3[min];
            arr3[min]=arr3[max];
            arr3[max]=temp;
        }
        System.out.println(Arrays.toString(arr3));
    }
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