Lines Matching refs:buf
88 StringBuilder buf = new StringBuilder(s.substring(0, idx));
90 buf.append(toLower(s.charAt(idx)));
92 return buf.toString();
106 StringBuilder buf = new StringBuilder(s.substring(0, idx));
108 buf.append(toUpper(s.charAt(idx)));
110 return buf.toString();
129 StringBuilder buf = new StringBuilder(s.substring(0, idx));
131 buf.append(toUpper(s.charAt(idx)));
135 buf.append(toLower(s.charAt(idx)));
137 return buf.toString();