public class ArrayDemo1Intro {
   public static void main (String [] args) { aTest(); }
   public static void aTest () {
   
      int [] numbers = new int [4];
      int numlen = numbers.length;
      System.out.println("numbers length = " + numlen);
   
      numbers [0] = 2;
      System.out.println("numbers[0] = " + numbers [0] );
       
      double [] a = new double [] {1.2, 2.3, 4.5, 6.7, 9.8, 8.9};
      
      int len = a.length;
      
      System.out.println("Array length = " + len);
   
      System.out.println(a);

      a[0]=9.9;
      System.out.println("a[5] = " + a[5]);
   
      for (int i = 0; i < a.length; i++){
         System.out.print(" a["+i+"] = "  + a[i] + "  ");
      }
      System.out.println();
      

      
   }// end aTest
}// end class


/*
   public static void aTest () {
   
      double [] a = new double [] {1.2, 2.3, 4.5, 6.7, 9.8, 8.9};
      
      int len = a.length;
      
      System.out.println("Array length = " + len);
   
      System.out.println(a);
      
      a[0]=9.9;
      System.out.println("a[0] = " + a[0]);
   
      for (int i = 0; i < a.length; i++){
         System.out.print(" a["+i+"] = "  + a[i] + "  ");
      }
      System.out.println();
      
   }// end aTest

*/