sbuffertest.java

刘艺编著的java教程的课本习题加例题代码 很有用哦！

public class SbufferTest {
   public static void main(String args[]){
      StringBuffer str=new StringBuffer("Sun & Moon");
      System.out.println("length="+str.length());
      System.out.println(str.replace(6,10,"Star"));
      System.out.println(str.reverse());
      System.out.println(str); 
   }
}