I have an ArrayList of strings, and I want to randomly change a string’s (random) char’ by index.
ArrayListName.get(i).charAt(j)
exists. What’s the equiv’ for a setter?
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I have an ArrayList of strings, and I want to randomly change a string’s (random) char’ by index.
ArrayListName.get(i).charAt(j)
exists. What’s the equiv’ for a setter?
Strings are immutable so they can’t change. You can use a
StringBufferorCharacter Array.StringBufferhas asetCharAtmethod that takes an index and character.If you want to use a
Stringyou’ll have to create a newStringwith the character changed and replace the oldString.