- 사용 언어 : C++
 
 
String str2("abcb");
String str3(" aB c ");
| 함수 | 예 | 
| charAt | str.charAt(3) == 'd' | 
| compareTo | str2.compareTo("abcb") == 0 | 
| compareToIgnoreCase | str2.compareTo("AbCb") == 0 | 
| concat | str.concat(str) == "abcdefabcdef" | 
| contains | str.contains("bcd") == TRUE | 
| endsWith | str.endsWith("ef") == TRUE | 
| startsWith | str.startsWith("abc") == TRUE | 
| equals | str.equals(new String("abcdef")) == TRUE | 
| equalsIgnoreCase | str.equalsIgnoreCase(new String("ABcdEf")) == TRUE | 
| indexOf | str2.indexOf("b") == 1 | 
| isEmpty | str.isEmpty == FALSE | 
| lastIndexOf | str2.lastIndexOf("b") == 3 | 
| length | str.length() == 6 | 
| replace | str.replace("bc", "ad") == "aaddef" | 
| split | str.split("c") == {"ab", "def"} | 
| subString | str.subString(2, 4) == "cd" | 
| format | String::format("참석자 : %d명", 8) == "참석자 : 8명" | 
| trim | str3.trim() == "aB c" | 
| toLower | str3.toLower() == " ab c " | 
| toUpper | str.toUpper() == "ABCDEF" | 
| valueOf | String::valueOf(3) == "3" | 













