How to convert a String without separator to an ArrayList<Character>
.
My String is like this:
String str = "abcd..."
I know one way of doing this is converting the String to char[]
first, and then convert the char []
to ArrayList <Character>
.
Is there any better way to do this? like converting directly? Considering time and performance, because I am coding with a big database.
You need to add it like this.
String str = "abcd...";
ArrayList<Character> chars = new ArrayList<Character>();
for (char c : str.toCharArray()) {
chars.add(c);
}