waltermilner

Untitled

Dec 20th, 2015
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Java 0.53 KB | None | 0 0
  1.   public static void main(String[] args) {
  2.     MyString ms = new MyString("abc defg");
  3.     ms.reverse();
  4.     System.out.println(ms); // gfed cba
  5.   }
  6. }
  7.  
  8. class MyString {
  9.  
  10.   char[] wrapped;
  11.  
  12.   MyString(String s) {
  13.     wrapped = s.toCharArray();
  14.   }
  15.  
  16.   public String toString() {
  17.     return new String(wrapped);
  18.   }
  19.  
  20.   void reverse() {
  21.     for (int i = 0; i < wrapped.length/2; i++) {
  22.       char temp = wrapped[i];
  23.       wrapped[i] = wrapped[wrapped.length - i - 1];
  24.       wrapped[wrapped.length - i-1] = temp;
  25.     }
  26.  
  27.   }
  28. }
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