Can you please explain what this hash function is doing? I don't understand the answer.

Can you please explain the answer? I am having difficulty understanding it.

For Question 4, refer to the following hash function: int getindex(String k) ( returnklength0 % 10; 4. Using the above hash function, which of the following pairs 1/1 of subsequent set calls will result in a collision, assuming that the current number of buckets is large enough to store all the elements? (the hash table uses String keys and double values) * set("shampoo, 2); set(conditioner"', 3) set("boba, 4.5); set( crispy chicken', 8.5); set("sandwich', 4); set("salad', 5); set( coca cola, 2); set(coke zero', 2); set('water bottle, 1.5); set(flamin' hot cheetohs',2); Feedback Good job! 5. How many total unique 1-grams, 2-grams, and 3-grams are 1/1 there in the sentence "Class is in York Hall and Warren Lecture Hall": O 23 O 28 O 56 O 63 Feedback Good job