Java.io.PrintStream.printf string() 方法

package com.codingdict;



import java.io.*;



public class PrintStreamDemo {



   public static void main(String[] args) {

      String s = "Hello World";



      // create printstream object

      PrintStream ps = new PrintStream(System.out);



      // printf this string

      ps.printf("This is a %s application", s);



      // flush the stream

      ps.flush();

   }

}