System configuration in solaris

Running of "/usr/sbin/prtconf" will give the System configuration...

To filter Details you can use grep
ex:
/usr/sbin/prtconf | grep Memory

ResultSet Behaviour in Java

A ResultSet cursor is initially positioned before the first row;
the first call to the method next makes the first row the current row;
the second call makes the second row the current row, and so on.
If an input stream is open for the current row, a call to the method next will implicitly close it.
A ResultSet object's warning chain is cleared when a new row is read.
Returns: true if the new current row is valid; false if there are no more rows
Throws: SQLException if a database access error occurs

smple prgram to read from console in java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.DecimalFormat;
import java.text.ParseException;

public class ReadDoubleFromConsole {
 public static void main(String[] args) {
   System.out.println("Enter a number.");
   double numberFromConsole;
   try {
     InputStreamReader isr = new InputStreamReader(System.in);
     BufferedReader br = new BufferedReader(isr);
     String s = br.readLine();
     DecimalFormat df = new DecimalFormat();
     Number n = df.parse(s);
     numberFromConsole = n.doubleValue();
   } catch (IOException e) {
     numberFromConsole = 0;
   } catch (ParseException e) {
     numberFromConsole = 0;
   }
   System.out.println(numberFromConsole );
 }
}