StringUtil { public static String capitalizeInitial(String str) { if (str == null || "".equals(str)) { return str; } char[] chars = str.toCharArray(); chars[0] = Character.toUpperCase(chars[0]); return new String(chars); }  static boolean isWhitespace(char c); static boolean isZenHankakuSpace(char c); static String rtrim(String str); static String ltrim(String str); static String trim(String str); static String rtrimZ(String str); static String ltrimZ(String str); static String trimZ(String str); static String toShortClassName(String longClassName); static String getExtension(String name); static String toHexString(byte[] byteArray, String delim); static String capitalizeInitial(String str); static String[] parseCSV(String csvString); static String[] parseCSV(String csvString, String escapeString); static String dump(Map<?, ?> map); static String getArraysStr(Object[] arrayObj); static String hankakuToZenkaku(String value); static String zenkakuToHankaku(String value); static String filter(String str); static String toLikeCondition(String condition); static int getByteLength(String value, String encoding); static final String LINE_SEP; static final String LIKE_ESC_CHAR; }
@Test public void testCapitalizeInitial01() throws Exception { String input = "abc"; String result = StringUtil.capitalizeInitial(input); assertEquals("Abc", result); }
@Test public void testCapitalizeInitial02() throws Exception { String input = "Abc"; String result = StringUtil.capitalizeInitial(input); assertEquals("Abc", result); }
@Test public void testCapitalizeInitial03() throws Exception { String input = "123"; String result = StringUtil.capitalizeInitial(input); assertEquals("123", result); }
@Test public void testCapitalizeInitial04() throws Exception { String input = ""; String result = StringUtil.capitalizeInitial(input); assertEquals("", result); }
@Test public void testCapitalizeInitial05() throws Exception { String input = null; String result = StringUtil.capitalizeInitial(input); assertEquals(null, result); }