Why We Use Join Method In Java .?

Question

Please help me to figure out..

Answer 1

Yes, it basically converts arrays to strings (and then to "P P A P" fruits)… ^_^

Answer 2

If you have an array, say, arr = ["Apple", "pen"], array.join(" ") will give you "Apple pen". ["Apple", "pen", "pineapple", "pen"].join("-") will result in "Apple-pen-pineapple-pen".

The join() method is used when certain methods, like sort(), which is only available for arrays, cannot be used on strings.

Answer 3

thanks ;_;
the example is awesome 🐸

Answer 4

If you have a string, and you want to let's say sort the characters, you can split the string with .split("") into arrays and use those methods only available for arrays.