System.out.println("删除数组中重复元素后数组的长度为："+a);

    }

    public static int  removeDuplicates(int[] nums) {

        int count=0;

        if (nums.length==0 ||nums.length==1)

            return -1;

        else

        {

            Arrays.sort(nums);

            for(int i=0;i<nums.length-1;i++)

            {

                if(nums[i]!=nums[i+1])

                        {

                        nums[count]=nums[i];

                        count++;

                        }

                else if(nums[i]==nums[i+1])

                    continue;

                            if(nums[nums.length-1]!=nums[nums.length-2])

                {

                    nums[count]=nums[nums.length-1];

                    count++;

                }

            for(int i=0;i<count;i++)

                System.out.println(nums[i]);

            return count;

    }

    }

}

删除排序数组中的重复数字1