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- public static void main(String[] args) {
- MyString ms = new MyString("abc defg");
- ms.reverse();
- System.out.println(ms); // gfed cba
- }
- }
- class MyString {
- char[] wrapped;
- MyString(String s) {
- wrapped = s.toCharArray();
- }
- public String toString() {
- return new String(wrapped);
- }
- void reverse() {
- for (int i = 0; i < wrapped.length/2; i++) {
- char temp = wrapped[i];
- wrapped[i] = wrapped[wrapped.length - i - 1];
- wrapped[wrapped.length - i-1] = temp;
- }
- }
- }
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