Can i show 10,000 of rows in jtable

Question

hello,
can i show 10,000 (>10,000) of rows of data (from databases)in jtable at time.
thanks
daya

Answer 1

if you want to increase the memory, you have to start a new JVM. This is the way I have always maximized the memory:
public static void main(String[] args)
        try
          if(Runtime.getRuntime().maxMemory() < 64*1024*1024) //64 megabytes ; I think the default is about 32 ?
               Process p = Runtime.getRuntime().exec(new String[]{"java","-Xmx512m","-Xms512m",getClass().getName()}); //512 megabytes; however much you want, just watch your greed =D
               new ThreadGobbler(p); //defined below
               return;
     }catch(IOException e) { e.printStackTrace();}
        // now start your usual main() ...
}what that snippet of code does is check to make sure you have at least 64 megabytes of memory. If you do not, the program re-runs with the specified args - the Xmx sets the max memory, and Xms sets the min memory (I think...). Not quite sure what the differences are, but it works =D
anyway, the thread gobbler is used just to redirect output and input to the default System.out and System.err. If you do not need to redirect, just delete/comment out the line above. (I don't know if this is the most elegant way to do it because lines are lost if the streams madly flush data, but...)
class ThreadGobbler
     private Process process;
     private BufferedReader std, error;
     public ThreadGobbler(Process toDo)
          process = toDo;
          std = new BufferedReader(new InputStreamReader(process.getInputStream()));
          error = new BufferedReader(new InputStreamReader(process.getErrorStream()));
          new Thread()
               public void run()
                    try{
                         checkError();
                    catch(IOException e){
                         System.err.println("Error in error reading.");
                         System.exit(1);
          }.start();
          new Thread()
               public void run()
                    try{
                         checkStd();
                    catch(IOException e){
                         System.err.println("Error in std reading.");
                         System.exit(1);
          }.start();
     public void checkError() throws IOException
          String error;
          while((error = this.error.readLine())!=null)
               System.err.println(error);
     public void checkStd() throws IOException
          String std;
          while((std = this.std.readLine())!=null)
               System.out.println(std);
}Hope that helps! If you have any questions, just reply =D
Alex