How To Reverse A String .







This   example  explains  how  to  reverse the  string .  Three  different  logic  given 
according to the  requirement . I have  printed  one of them  you can try it  using
eclipse  etc. 
  





      

import java.util.StringTokenizer;


      public class StringTokens {

public static void main(String[] args) {
// TODO Auto-generated method stub

  String   st = "This  is  string tokenizer";
 
  System.out.println(st+"::");
 
  System.out.println("After Reverse ");
 
//***********  Method NO1***************** 
 
  /*
       StringBuffer bf =new StringBuffer(st);
     
             StringBuffer  stc =bf.reverse();
           
             System.out.print("Reverse "+stc);*/
     
 
  //************** Method No=2*********************************
 
             StringTokenizer   stz = new StringTokenizer(st);
     
       int   stcount=stz.countTokens();
                  int countst=0;
     
            String[]  stra=new String[stcount];
     
               while (stz.hasMoreTokens()){
              
              
                    stra[countst]=stz.nextToken();
              
                         countst=countst+1;
               }

            for(int i=stra.length-1 ; i>=0 ;i--){
            
            
             System.out.print(stra[i]);
            
             System.out.print(";");
            
            }

           

//************ Method NO 3 ***********           
 
/*while(stz.hasMoreTokens()){

String  ss=stz.nextToken();

for(int i=ss.length()-1 ; i>=0; i--){

System.out.print(ss.charAt(i));



}*/

}
 
 


}


  Here  is   program output .
********************************

This  is  string tokenizer::
After Reverse
tokenizer;string;is;This;
How To Reverse A String . How To Reverse A String . Reviewed by Mukesh Jha on 9:27 PM Rating: 5

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