字符串反转

package com.heima.test;import java.util.Scanner;public class Test {/** * * A:案例演示* 需求：把字符串反转举例：键盘录入"abc"输出结果："cba"用StringBuffer的功能实现 */public static void main(String[] args) {Scanner sc = new Scanner(System.in);//创建键盘录入对象String line = sc.nextLine();//将键盘录入的字符串存储在line中/*StringBuffer sb = new StringBuffer(line);//将字符串转换为StringBuffer对象sb.reverse();//将缓冲区的内容反转System.out.println(sb.toString());*/System.out.println(revString(line));}/* * 将字符串反转 * 1,返回值类型String * 2,参数列表String line */public static String revString(String line) {StringBuffer sb = new StringBuffer(line);//将字符串转换为StringBuffer对象sb.reverse();//将缓冲区的内容反转return sb.toString();}}