Java tutorial
import java.io.BufferedWriter; import java.io.IOException; import java.io.StringWriter; public class Main { public static void main(String[] args) throws IOException { char[] cbuf = "from java2s.com".toCharArray(); StringWriter sw = new StringWriter(); BufferedWriter bw = new BufferedWriter(sw); bw.write(cbuf, 2, 5); bw.flush(); StringBuffer sb = sw.getBuffer(); System.out.println(sb); } }