Two Sum.java

class Solution
{
    public int[] twoSum(int[] nums, int target)
    {
        for(int i=0; i<nums.length; i++)
        {
            for(int j=i+1; j<nums.length; j++)
            {
                int c=target-nums[i];
                if(nums[j]==c)
                    return new int[] {i,j};
            }
        }
        throw new IllegalArgumentException("no match found");
    }
}