JAVA uses the standard library to write a character string flip method by itself.

 

The algorithm is to extract each word by space, store it in a buffer for flip processing, and then add it to a new string. The new string completes the entire method process.

 

 

Public class ReserveString {public String reserve (String sentence) {String backS = new String (); StringBuffer temp = new StringBuffer (); int I = 0; while (I

 
  
= 0) {char ⅱ = temp. charAt (ii); char Sjj = temp. charAt (jj); temp. setCharAt (ii, Sjj); temp. setCharAt (jj, ⅱ); ii --; jj ++;} // obtain a single word and reverse the I ++; // skip the space backS = backS + temp +; // Add the flipped word and space temp = new StringBuffer (); // reset temp to store a single word} return backS;} public static void main (String [] args) {ReserveString reserveString = new ReserveString (); System. out. println (reserveString. reserve (I love programming rly ));}}