Write a static method histogram() that takes an array a[ ] of int values...........

Question

Write a static method histogram() that takes an array a[ ] of int values and an integer M as arguments and returns an array of length M whose ith entry is the number of times the integer i appeared in the argument array. If the values in a[ ] are all between 0 and M–1, the sum of the values in the returned array should be equal to a.length.

Answer 1