String str = "Hello, World!";
byte[] bytes = str.getBytes(Charsets.UTF_8);
File file = new File("path/to/file.txt");
List<String> lines = Files.readLines(file, Charsets.UTF_8);
Files.write(lines, new File("path/to/another_file.txt"), Charsets.UTF_8);
ByteSource source = ByteSource.wrap(bytes);
byte[] copiedBytes = source.copyTo(ByteStreams.newOutputStream(destination));
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>30.1-jre</version>
</dependency>
import com.google.common.io.Files;
import com.google.common.io.ByteSource;
Charsets.UTF_8
Charsets.UTF_16
