public class Demo4_StringBufferMethod {

	/**
	 * * A:StringBuffer的替換功能
			* public StringBuffer replace(int start,int end,String str):
				* 從start開始到end用str替換
		* B:StringBuffer的反轉功能
			* public StringBuffer reverse():
				* 字串反轉
	 */
	public static void main(String[] args) {
		StringBuffer sb = new StringBuffer("我愛總複習");
		//sb.replace(0, 3, "bai");					//替換
		//System.out.println(sb);
		
		sb.reverse();
		System.out.println(sb);
	}

}