* 사용 언어 : C++

String str = new String("abcdef");
|| 함수 || 예 ||  
|| charAt || str.charAt(3) == 'd' ||
|| compareTo || ||
|| compareToIgnoreCase || ||
|| || ||

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
str.
isEmpty
lastIndexOf
length
replace
split
subString

format
trim
toLower
toUpper

valueOf