Examples All in One  

package guava;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.File;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.nio.charset.Charset;import java.util.List;import com.google.common.hash.HashCode;import com.google.common.hash.Hashing;import com.google.common.io.BaseEncoding;import com.google.common.io.ByteSink;import com.google.common.io.ByteSource;import com.google.common.io.Closer;import com.google.common.io.FileWriteMode;import com.google.common.io.Files;public class FilesExamples {	public static void main(String[] args) throws IOException {		File from = new File("from");		File to = new File("to");		// Copy File		Files.copy(from, to);		// Moving File		Files.move(from, to);		// Reading File --> List
    
     		List
     
       lines = Files.readLines(from, Charset.defaultCharset());		// Hashing File		HashCode code = Files.hash(from, Hashing.md5());		// Writing & Appending		Files.write("hello world ! ".getBytes(), to);		Files.append("appended string", to, Charset.defaultCharset());		// Source & Sink		ByteSource byteSource = Files.asByteSource(from);		byte[] array = byteSource.read();		ByteSink byteSink = Files.asByteSink(to, FileWriteMode.APPEND);		byteSink.write(Files.toByteArray(from));		// Copy from ByteSource --> ByteSink		Files.asByteSource(from).copyTo(				Files.asByteSink(to, FileWriteMode.APPEND));		// Closer		// Make Sure all registered closeable object is closed		// When closer.close() is called		Closer closer = Closer.create();		BufferedReader reader = new BufferedReader(new FileReader(from));		BufferedWriter writer = new BufferedWriter(new FileWriter(to));		closer.register(reader);		closer.register(writer);		closer.close();		// Base-Encoding		BaseEncoding encoding = BaseEncoding.base64();		encoding.encode(Files.toByteArray(from));	}}