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Yes there is, but as I assume this is an assignment of some kind?
Basically toCharArray puts the entire string as an array of chars, what charAt does it gets a character at a certain indexing point (starting at 0)
e.g. the word : "some" would be indexed as 0 1 2 3 (s = 0) (e=3) etc.
so the statement args.charAt(0) would get you the first character in the string.
You can use a for loop and use the int value of the loop as your indexing eg start at 0 and increment by 1 each loop. Make sure you get the clause correct or you may get a null pointer.
tiny pseudo - get char at position, set char into char[] at same position.
Sorry I may of just confused you.. I find it hard with out giving you the exact code to get it to work...
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