java - Returning NULL from string with appened chars -

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the string dexversion returns null

i tried many things taking string , appending readdata[] char , worked fine , tried see if char vs. character results inconclusive

import java.io.*; import java.net.*; import java.lang.*; import java.util.*;  class main {     public static void main(string args[]) {          string version = new string("1.0 (alpha)");          main main = new main();         datahandling data = new datahandling();         boolean doneprocessing = false;         int x = 0,y = 0;         string dexversion = new string("v:");         string pokemon[][] = new string[700][10];         system.out.println(":");         system.out.println("pokeutility:main_thread_started_in_static_method_main");         system.out.println("pokeutility:starting_version=" + version);         system.out.println("pokeutility:downloading_pokedex_data");         data.download();         system.out.println("pokeutility:reading_pokedex_data");         char readdata[] = data.read();         system.out.println("pokeutility:processing_pokedex_data");         while (doneprocessing = false) {             if ((readdata[x]) == '{') {                 x++;                 while ((readdata[x]) != '}') {                     dexversion += readdata[x];                     x++;                 }             } //            if ((readdata[x]) == '[') { //                x++; //                while ((readdata[x]) != ']') { //                    dexversion += readdata[x]; //                    x++; //                } //            }             if ((readdata[x]) == '%') doneprocessing = true;             x++;         }         system.out.println(dexversion + ".");     } } class datahandling {     public void download() {         bufferedinputstream dfile;         fileoutputstream wfile;         try {             dfile = new bufferedinputstream(new url("http://www.harry.technology/pokedex").openstream());             wfile = new fileoutputstream("pokedex");             int x = 0,y = 0;             while ((x = dfile.read()) != -1) {                 wfile.write(x);             }             wfile.close();             dfile.close();         } catch (ioexception e) {             system.out.println("pokeutility:error_" + e);             system.exit(0);         }     }     public char[] read() {         int x = 0,y = 0;         char input[] = new char[2000];         string output = new string("");         try {             filereader file = new filereader("pokedex");             while ((x = file.read()) != -1) {                 input[y] = convert(x);                 y++;             }             file.close();         } catch (ioexception e) {             system.out.println("pokeutility:error_" + e);             system.exit(0);         }         return input;     }     public char convert(int a) {         switch (a) {             ascii switch statement (left out because of length)         }     } }

here file "pokedex":

{1.0} [001,bulbasaur] %

you can see on server visiting: http://www.harry.technology/pokedex


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