Sample for http://stackoverflow.com/a/19495505/1851024

CharStreamsExample

package chaschev.t1;

import com.google.common.io.CharStreams;
import com.google.common.io.Files;
import it.unimi.dsi.lang.MutableString;

import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;

public class CharStreamsExample {
    public static void main(String[] args) throws IOException {
        File file = new File("pom.xml");

        MutableString str = new MutableString((int) file.length());
        CharStreams.copy(Files.newReaderSupplier(file, Charset.defaultCharset()), str);
        System.out.println(str);
    }
}