public class Length
{
   public static void main(String[] args)
   {
 
      double[] a = new double[5];        // Define an array of 5 elements
      double[] b = new double[10];       // Define an array of 10 elements

      System.out.println( a.length );    // Prints 5
      System.out.println( b.length );    // Prints 10
   }
}