| Return | Method | Summary |
|---|---|---|
| String | toLowerCase() | Converts this String to lower case using the rules of the default locale. |
| String | toLowerCase(Locale locale) | Converts this String to lower case using the rules of the given Locale. |
| String | toUpperCase() | Converts this String to upper case using the rules of the default locale. |
| String | toUpperCase(Locale locale) | Converts this String to upper case using the rules of the given Locale. |
public class Main {
public static void main(String[] argv) {
String str = "jAvA2s.com";
System.out.println(str.toLowerCase());
System.out.println(str.toUpperCase());
}
}
The output:
java2s.com
JAVA2S.COM| www___._j_av_a_2__s_.c__o_m___ | Contact Us |
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