Find the number of the last of the matrix rows containing the maximum number of identical elements?

Question

Java

Please help, I don't know how to solve this problem

Given an M × N integer matrix. Find the number of the last of its rows containing the maximum number of identical elements.

Answer 1

1. Write a method that determines the number of identical elements in a string.
2. Collect information on the rows about the number of identical elements and find the rows with the maximum number.
3. Select the last of these lines.