JAVA基础（StringBuffer反转替换功能）

1，StringBuffer的替换功能

• public StringBuffer replace(int start,int end,String str):

  • 从start开始到end用str替换

1，StringBuffer的反转功能

• public StringBuffer reverse():

  • 字符串反转

 

 

public class Demo4_StringBufferMethod {





    /**

     * * A:StringBuffer的替换功能

            * public StringBuffer replace(int start,int end,String str):

                * 从start开始到end用str替换

        * B:StringBuffer的反转功能

            * public StringBuffer reverse():

                * 字符串反转

     */

    public static void main(String[] args) {

        StringBuffer sb = new StringBuffer("我爱总复习");

        //sb.replace(0, 3, "bai");                    //替换

        //System.out.println(sb);

        

        sb.reverse();

        System.out.println(sb);

    }





}