The programs read the something else (like a poem.txt) and search the word in text. If it exists then find and write how many times its written in the text on the screen(JOptionPane). If it does not exist, return 0.-The programs read the something else (like a poem.txt) and search the word in text. If it exists then find and write how many times its written in the text on the screen(JOptionPane). If it does not exist, return　0.