Java.io.PrintWriter.append Subsequence() 方法

package com.codingdict;



import java.io.*;



public class PrintWriterDemo {



   public static void main(String[] args) {

      CharSequence sq1 = "Hello";

      CharSequence sq2 = " World";



      // create a new stream at system

      PrintWriter pw = new PrintWriter(System.out);



      // append the sequence

      pw.append(sq1, 1, 3);

      pw.append(sq2, 1, 4);



      // flush the writer

      pw.flush();



   }

}