### Question:
StringUtils extends org.apache.commons.lang.StringUtils { public static String toCamelCase(String nameWithUnderscores) { String[] splits = split(nameWithUnderscores, '_'); StringBuilder b = new StringBuilder(); for (String each : splits) { b.append(StringUtils.capitalize(each.toLowerCase())); } return b.toString(); } StringUtils(); static String toCamelCase(String nameWithUnderscores);  }### Answer:
@Test public void toCamelCase_returnsExpectedValue() { assertEquals("CdcCrociera", StringUtils.toCamelCase("cdc_crociera")); assertEquals("CdcCrociera", StringUtils.toCamelCase("CDC_CROCIERA")); }