Program in java
1- Implement an algorithms to calculate the sum of all numbersin an array. Â
2- Implement an algorithm to determine if an array has allunique integer values.
3- Given an array nums. We define a running sum of an array asrunningSum[i] = sum(nums[0]…nums[i]).
Return the running sum of nums.
Example 1:
Input: nums = [1,2,3,4]Output: [1,3,6,10]Explanation: Running sum is obtained as follows: [1, 1+2, 1+2+3, 1+2+3+4].
