分析:1.用键盘输入字符串
2 .基于写法的字符串反转
stringstring buildersb.reversetostring将转换为string
3 .调用方法
4 .输出结果
打包字符串; import java.util.Scanner; 要在StringBuilder中完成字符串反转分析,请执行以下操作:1.通过键盘输入一个字符串2 .写入方法字符串反转string---stringbuilder---sb.reverse-- tostring 调用方法4 .输出结果*请输入publicclassstringtest 02 { publicstaticvoidmain (string [ ] args ) { System.out.println ('字符串) sannersc=newscanner(system.in; String s=sc.nextLine (; stringS1=stringreverse(s; system.out.println(s1反转后: ) s1 ); (/*两个明确的)返回类型(string */publicstaticstringstringstringreverse (strings ) ) stringbuilder sb=new stringbuburse sb.reverse (; String s1=sb.toString (; 返回S1; }