/** * Filename: HelloHangulUTF8.java * * File Encoding: UTF8 * * Compile: javac HelloHangulUTF8.java * * Execute: java HelloHangulUTF8] * * Output: * Hello. world! * 안녕하세요? * * Version * Prompt> java -version * java version "1.8.0_221" * Java(TM) SE Runtime Environment (build 1.8.0_221-b11) * Java HotSpot(TM) Client VM (build 25.221-b11, mixed mode, sharing) * * os EnvironmenT: 32but Window 10 *..