Prints 'N' numbers with a range between 'lo' and 'hi'.

RandomSeq.java

public class RandomSeq
{ 
    private RandomSeq() { }

    public static void main( String[] args )
    {
        int n = Integer.parseInt( args[0] );

        if ( args.length == 1 )
        {
            for ( int i = 0; i < n; i++ )
            {
                double x = StdRandom.uniform();
                StdOut.println( x );
            }
        } else if ( args.length == 3 ) {

            double lo = Double.parseDouble( args[1] );
            double hi = Double.parseDouble( args[2] );

            for ( int i = 0; i < n; i++ )
            {
                double x = StdRandom.uniform( lo, hi );
                StdOut.printf( "%.2f\n", x );
            }
        } else {
            throw new IllegalArgumentException( "Invalid number of arguments" );
        }
    }
}