java solution for leetcode 217 contains duplicate

[sukrut57]

• Added java solution for leetcode 217 contains duplicate
• -Added java solution for leetcode 242 valid anagram

[detronetdip]

Insted of doing this you can use hasSet.add(nus[i]).
code will look like->

class Solution {
    public boolean containsDuplicate(int[] nums) {
        HashSet<Integer> set=new HashSet<>();
        for(int i=0;i<nums.length;i++){
            if(!set.add(nums[i])){
                return true;
            }
        }
        return false;
    }
}

[neetcode-gh]

Thanks but someone did the Java solution for this