for loop - Verify the palindrome in Java. Can you help me to find what's the issue with this code -


can me find bug in code. when test string not palindrome, message palindrome. 

import java.util.*;  public class main{       public static void main(string args[]){         string input = "";         system.out.println("enter string verify palindrome");         scanner scan = new scanner(system.in);         input = scan.nextline();          main m = new main();         if(m.palindrome(input))         system.out.println(" string " + input + " palindrome ");         else system.out.println(" string " + input + " not palindrome ");     }      private boolean palindrome(string input){         string reverse = input;         int j;         for(int i=0;i<=reverse.length()-1;i++){             for( j=reverse.length()-1;j>=0;){                 if(reverse.charat(i)== reverse.charat(j)){                     return true;                 }                 else{                     return false;                 }                 }j--;          }         return false;        }  } 

if(reverse.charat(i)== reverse.charat(j)){    return true; }

you returning true if first , last character same without going on check other character.

i'd better approach continue stepping through word until find character not match or until finish. if find character not match, return false. if finish, return true.


Comments

Post a Comment

Popular posts from this blog

java.util.scanner - How to read and add only numbers to array from a text file -

i'm learning java , have question regarding reading file want read numbers file contains strings well. here example of file: 66.56 "3 java 3-43 5-42 2.1 1 and here coding: public class test { public static void main (string [] args){ if (0 < args.length) { file x = new file(args[0]); try{ scanner in = new scanner( new fileinputstream(x)); arraylist<double> test = new arraylist<>(); while(in.hasnext()){ if(in.hasnextdouble()){ double f=in.nextdouble(); test.add(f);} else {in.next();} } catch(ioexception e) { system.err.println("exception during reading: " + e); } } my problem add 66.56,2.1 , 1 doesn't add 3 after "3 or ignores 3-43 , 5-42 can tell me how skip strings , add doubles here? thanks all said 3 ie; "3, 3-43 , 4-42 strings either u read string , split , check number @ " , - or put in space between characters , integers. jvm after compilation tre...
Read more

rewrite - Trouble with Wordpress multiple custom querystrings -

i'm working on adding multiple querystring , doesn't seem work. i've found codes seems work others might i'm missing something. i want like: http://mydomain.com/board/?getyear=2013&getsometext2=sometext to http://mydomain.com/board/2013/sometext/ i added code below functions.php file. doesn't seem work should though. this works. echoing querystring gets both variable without problem. http://mydomain.com/board/2013/sometext/ but doesn't. tested querystring vis isset() seems nothing being set/get http://mydomain.com/board/2013/ function add_query_vars($vars) { $vars[] = "getyear"; $vars[] = "getsometext2"; return $vars; } add_filter('query_vars', 'add_query_vars'); function add_rewrite_rules($arules) { $anewrules = array('board/([^/]+)/([^/]+)/?$' => 'index.php?pagename=board&getyear=$matches[1]&getsometext2=$matches[2]'); $arules = $a...
Read more