Design a morse code class in java that encodes and decodes strings

The class should have a single private data variable M[] that contains the 26 morse code strings

there must be a constructor initializing M with Morse code a method named encode that takes a word made of only upper-case letters as an argument and returns the corresponding Morse Code string to the caller. a method named decode that takes a valid Morse code string and returns the the corresponding word in upper-case letters to the caller.