StringBuffer类本身有一个实现字符串逆序的方法public StringBuffer reverse();此方法十分方便简单，查看API即可。下面我自己写一个方法来实现字符串的逆序输出代码及运行结果如下文字版代码如下：import java.util.Scanner;
public class Test{
public static void main(String []args) {
package Recursive;
import java.util.Scanner;
public class Exercise18_09 {
public static void main(String[] args) {
System.out.print("Enter a string: ");
String value = new
