String and Array
- 자주 쓰이는 String 관련 메소드
| String method | detail |
|---|---|
| s.length() : int | get string size |
| s.equals(String) : boolean | compare values of other string |
| s.charAt(int) : char | get i th char |
| s.toCharArray() : char[] | return char type array : char[] |
| s.substring(int begin, int end) : String | get String from begin to end |
| s.toUpperCase() : String | return UPPER case String |
| s.replaceAll(String reg, String replace) : String | replace reg to replace |
| s.split(String reg) : String | split String by reg and return String[] |
| s.trim() : String | terminate space on head and tail |