@Test public void testIsEmpty() { Assert.assertTrue(StringUtil.isEmpty("")); Assert.assertTrue(!StringUtil.isEmpty("a")); }
public static boolean isEmpty(CharSequence theString) { return theString.length() == 0; }
StringUtil { public static boolean isEmpty(CharSequence theString) { return theString.length() == 0; } }
StringUtil { public static boolean isEmpty(CharSequence theString) { return theString.length() == 0; }  }
StringUtil { public static boolean isEmpty(CharSequence theString) { return theString.length() == 0; }  static boolean isWhitespace(char charCode); static boolean isWhitespace(int charCode); static String toLowerCase(CharSequence string); static String toUpperCase(CharSequence string); static boolean isEmpty(CharSequence theString); static int[][] levenshteinDistance(String wordForm, String lemma); static void computeShortestEditScript(String wordForm, String lemma,
      int[][] distance, StringBuffer permutations); static String decodeShortestEditScript(String wordForm, String permutations); static String getShortestEditScript(String wordForm, String lemma); }
StringUtil { public static boolean isEmpty(CharSequence theString) { return theString.length() == 0; }  static boolean isWhitespace(char charCode); static boolean isWhitespace(int charCode); static String toLowerCase(CharSequence string); static String toUpperCase(CharSequence string); static boolean isEmpty(CharSequence theString); static int[][] levenshteinDistance(String wordForm, String lemma); static void computeShortestEditScript(String wordForm, String lemma,
      int[][] distance, StringBuffer permutations); static String decodeShortestEditScript(String wordForm, String permutations); static String getShortestEditScript(String wordForm, String lemma);  }