解决思路

  public int rob(int[] nums){
        if (nums.length == 0)
            return 0;
        if (nums.length == 1)
            return nums[0];
        return Math.max(myRob(Arrays.copyOfRange(nums,0,nums.length-1)),myRob(Arrays.copyOfRange(nums,1,nums.length)));
    }
    private int myRob(int[] num){
        int preMax = 0;
        int currMax = 0;
        for (int i:num){
            int temp = currMax;
            currMax = Math.max(preMax + i,currMax);
            preMax = temp;
        }
        return currMax;
    }