데블스캠프2011/셋째날/String만들기

String str = new String("abcdef");

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