public class MainClass {
public static void main(String[] arg) {
StringBuffer buf = new StringBuffer("::");
char[] text = { 'i', 's', ' ', 'e', 'x', 'a', 'c', 't', 'l', 'y'};
buf.append(text, 2, 8);
System.out.println(buf);
}
}
:: exactly