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package ddh.firstdemo.test.shuzu; import java.sql.SQLOutput; import java.util.Scanner; /** * @Author Administrator * @create 2020/7/1 17:17 */ public class TranTwo { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("请输入---》"); String s1 = in.nextLine(); System.out.println("s1-->"+s1); TranTwo t1 = new TranTwo(); t1.reserveString(s1); t1.StringArray(s1); } //字符串反转 private void reserveString(String ss1){ StringBuilder str1 = new StringBuilder(ss1); System.out.println("反转---》"+str1.reverse()); } //一句话有多少个单词 private void StringArray(String ss1){ String[] str1 = ss1.split(" "); System.out.println("str1--->"+str1); System.out.println("str1长度--->"+str1.length); for (String aa:str1){ System.out.println(aa); } } } ---------------------------控制台输出----------------------------------------- 请输入---》 please thumb up body 请点赞老铁 s1-->please thumb upbody 请点赞老铁 反转---》铁老赞点请 ydobpu bmuht esaelp str1--->[Ljava.lang.String;@7cc355be str1长度--->4 please thumb upbody 请点赞老铁