Turn the three algorithms into a single java code:

$1.$ The data structures HashSet $($or Set$)($for getting distinct characters present in the text$)$ and HashTable $($or HashMap$)($for creating shift table$)$ should be used in Horspool algorithm.

$2.$ The program should store all text of $$input$.$txt$$ file into a variable of type $$String$$ after converting all text into lower case.

$3.$ Randomly generated patterns should be stored in file $$patterns$.$txt$$ as well as in string type array.