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kambagiri student

Posts I've Made

In Topic: programming with java RXTX library.. Accessing the data through usb

Posted 11 Feb 2013

farrell2k, on 11 February 2013 - 03:17 AM, said:
So what is the error. Please post a stack trace.

the exception is java.lang.arrayindexoutofboundsexception:0 :: Actually it occurs as the array is declared with 0 size; as per my knowledge it should be declared as 0 since, we couldn't predict the portname so it should assign portname by default. What do you say? is there any flaw with that particular kind of declaration???
In Topic: java swing code execution

Posted 29 Jan 2013

GregBrannon, on 26 January 2013 - 11:44 AM, said:
There could be many things going wrong in the actionPerformed() method, and we can't test them all. Write your own code, print statements, logs entries, etc., to test entry into and progress through the actionPerformed() method and the branches within.

If this is your first jdbc program, the problem(s) will probably be in connecting to the data base, getting info from it, etc., but you should be seeing error messages if that's the case, except . . .

Empty catch() blocks are worthless. Put something in there to indicate when errors have occurred.

can we set position for the labels in the above program??

I have tried with setLocation(); setBounds(new Rectangle(new Point(200, 200), lab1.getPreferedSize())); and setBounds command but couldn't get positioned according to it..
Is there any problem without it??

or Do i need any corrections????
In Topic: java swing code execution

Posted 27 Jan 2013

GregBrannon, on 26 January 2013 - 11:44 AM, said:
There could be many things going wrong in the actionPerformed() method, and we can't test them all. Write your own code, print statements, logs entries, etc., to test entry into and progress through the actionPerformed() method and the branches within.

If this is your first jdbc program, the problem(s) will probably be in connecting to the data base, getting info from it, etc., but you should be seeing error messages if that's the case, except . . .

Empty catch() blocks are worthless. Put something in there to indicate when errors have occurred.

Thanks i must be a little bit conscious, it's just a single spell which nearly wiped out
In Topic: how to read information from RFID reader into our java program

Posted 21 Jan 2013

macosxnerd101, on 12 January 2013 - 11:38 AM, said:
The Java Communications API is probably your best starting point, unless a 3rd Party API already exists for this technology.

Actually, i'm working with java APIs regarding how to get/access the data from rfid reader connected using the usb but i couldn't find out the solution. What i require is i just want a usbjava snippet in accessing the data from the reader, wish you could help!!!...

In Topic: Shortest Job First

Posted 9 Aug 2011

The codes which are mentioned may be somewhat typical to understand. I written a simple which can also be understood by newbies

#include<stdio.h>
#include<conio.h>
int main()
{
     int cput[20],art[20],w[20],n,i,j=0,min,min1,temp,temp1;
     float avg,sum=0;
     printf("Enter number of processors:");
     scanf("%d",&n);
     for(i=0;i<n;i++)
     {
        printf("\n Enter values for %d processor:",i+1);
        scanf("%d ",&cput[i]);
        scanf("%d", &art[i]);
     }
    
    for(i=0;i<n;i++)
    {
      for(j=i+1;j<n;j++)
      {
        if(cput[i]>cput[j])
        {
          temp=cput[i];
          temp1=art[i];
          cput[i]=cput[j];
          art[i]=art[j];
          cput[j]=temp;
          art[j]=temp1;
        }
      }
    }
     printf("The order of processors:");
     for(i=0;i<n;i++)
     {
        printf("\n %d \t %d",cput[i],art[i]);
     }
     w[0]=0;
     for(i=1;i<n;i++)
     {
       w[i]=cput[i-1]+w[i-1];
       sum+=w[i];
     }
     avg=sum/n;
     printf("\n The average waiting time is :%f",avg);
    getch();
    return 0;
}