### Question:
ChineseTrans { public String toTrad(String str) { char[] c = str.toCharArray(); for (int i = 0; i < str.length(); i++) { char cc = s2l.get(c[i]); if (cc != 0) { c[i] = cc; } } return new String(c); } ChineseTrans(); void ensureST(); String normalizeCAP(String input,boolean b); String normalize(String input); String toTrad(String str); String toSimp(String str); static String toFullWidth(String input); static char toFullWidth(char c); static String toHalfWidth(String input); static void toHalfWidthFile(String infile, String outfile); static void toHalfWidthDir(String path,String suffix);  }### Answer:
@Test public void testToTrad() { String str; str = "ddd"; str = tc.toTrad(str); str = tc.toTrad(str); str = tc.toTrad(str); str = tc.toTrad(str); System.out.println(str); }