000000000000000
  11111111111111
   2222222222222
    333333333333
     44444444444
      5555555555
       666666666
        77777777
         8888888
          999999
           00000
            1111
             222
              33
               4

def Nummy(n):
   for i in range(n):
      print ' '*i + str(i)[-1]*(n-i)

/**
 * Nummy.java
 *
 * Simple demo of printing meaningless rows of numbers.
 *
 * Copyright 2003, Matt Gerrans.
 *
 * Turning in this code as homework is a violation of ethical principals,
 * and punishable by severe penalties, even if you change the variable
 * names.
 */
import java.util.List;
import java.util.LinkedList;
import java.util.Iterator;
 
public class Nummy 
{
   public static List getHomeworkAssignmentLinesOfText(int howMany)
   {
      List lines = new LinkedList();
      StringBuffer line = new StringBuffer();
      for( int i = 0; i < howMany; i++ )
      {
         for( int j = 0; j < howMany; j++ )
            line.append( j < i ? " " : Integer.toString(i%10) );
 
         lines.add(line.toString());
         line.setLength(0);
      }
      return lines;
   }
 
   public static void main(String args[])
   {
      int n = 10;
      if( args.length > 0 )
         try
         {
            n = Integer.parseInt(args[0]);
         }
         catch( NumberFormatException nfe )
         {
            String msg = 
              nfe.getMessage() + ", integer conversion is not impossible!\n" +
              "You should specify the number of lines you'd like to see as\n" +
              "a plain old integer value, like 100.\n" +
              "Here's the results with " + n + ":\n";
            
            System.out.println( msg );
         }
 
      Iterator lineIterator = getHomeworkAssignmentLinesOfText(n).iterator();
      while( lineIterator.hasNext() )
         System.out.println( lineIterator.next() );
   }
}

/**
 * Nummy.java
 *
 * Simple demo of printing meaningless rows of numbers.
 *
 * Copyright 2003, Matt Gerrans.
 *
 * Turning in this code as homework is a violation of ethical principals,
 * and punishable by severe penalties, even if you change the variable
 * names.
 */
public class Nummy 
{
   /** 
    * Gets the number of colums (and lines) to display from the command
    * line.   Returns 10, by default (in case of error, or no parameters).
    *
    * (You can ignore this part, if you are getting the number of columns
    *  some other way.)
    */
   public static int getColumnCountFromCommandLine( String args[] )
   {
      int n = 10;
      if( args.length > 0 )
         try
         {
            n = Integer.parseInt(args[0]);
         }
         catch( NumberFormatException nfe )
         {
            String msg = 
              nfe.getMessage() + ", integer conversion is not impossible!\n" +
              "You should specify the number of lines you'd like to see as\n" +
              "a plain old integer value, like 100.\n" +
              "Here's the results with " + n + ":\n";
            
            System.err.println( msg );
         }
      return n;
   }
 
   /**
    * Simple method to print out a silly bunch of lines.
    * This one more closely mimics this Python code:
    * <pre>
    %
    *    for i in range(howManyColumns):
    *       print ' '*i + str(i)[-1]*(howManyColumns-i)
    *
    * </pre>
    *
    * Note that it is probably a bad idea to have this method write
    * directly to the screen, but this is after all, a very simple 
    * method which demonstrates for-loops, if not good program design.
    */
   public static void simpleMethod( int howManyColumns )
   {
      for( int i = 0; i < howManyColumns; i++ )
      {
         for( int j = 0; j < i; j++ )
            System.out.print( " " );
 
         // "Integer.toString(i%10)" gives you the single-character string for the last digit of i.
         for( int j = i; j < howManyColumns; j++ )
            System.out.print( Integer.toString(i%10) );
 
         System.out.println();
      }
   }
 
   public static void main(String args[])
   {
      int howManyColumns = getColumnCountFromCommandLine(args);
 
      simpleMethod(howManyColumns);
   }
}