Ways to invert a string

 Packagecom.itheima_07;ImportJava.util.Scanner;/** String Inversion * Example: keyboard input "ABC" * Output: "CBA" * * Analysis: * A: Keyboard input a String * B: Write method to implement string inversion * A: the word The string is traversed backwards, and each of the resulting characters is spliced into strings. * B: Convert the string to a character array, then invert the character array, and finally convert the character array to a string * C: Call method * D: Output result*/ Public classStringTest2 { Public Static voidMain (string[] args) {//keyboard Input A stringScanner sc =NewScanner (system.in); System.out.println ("Please enter a string:"); String s=Sc.nextline (); //Write method to implement string inversion//Calling MethodsString result =reverse (s); //Output ResultsSYSTEM.OUT.PRINTLN ("Result:" +result); }                /** The string is traversed backwards, and each of the resulting characters is spliced into a string. * Two explicit: * Return value type: String * parameter list: string s*/        /*Public static string reverse (string s) {string ss = "";        for (int x=s.length ()-1; x>=0; x--) {ss + = S.charat (x);    } return SS; }    */        //converts a string to a character array, then reverses the character array, and finally converts the character array to a string     Public Staticstring Reverse (string s) {//Convert a string to a character array        Char[] CHS =S.tochararray (); //invert a character array         for(intStart=0,end=chs.length-1; start<=end; start++,end--) {            Chartemp =Chs[start]; Chs[start]=Chs[end]; Chs[end]=temp; }                //Finally, the character array is converted to a stringString SS =NewString (CHS); returnSS; }}

Ways to invert a string