how to edit my compare method

Question

I want to compare contens of my two txt files and write the different words in other file3.txt file

I want to do compare method in this way to write another txt file. A

Answer 1

You are opening the third file deneme3.txt twice without closing it in between. I guess the second time (in write()) an exception will be thrown, so there will be no write. Remove the first occurence of FileWriter writer = new FileWriter(new File("D:\\Denemeler\\deneme3.txt")); (the one in compare()) and you should be fine.