Common Array Algorithms

2. Counting Loops and Arrays


Answer:

This sounds like a good place for a counting loop.

Counting Loops and Arrays

public class CountArray
{

  public static void main ( String[] args )
  {
    int[] egArray = { 2, 4, 6, 8, 10, 1, 3, 5, 7, 9 };

    for ( int index =  ;  ;  )
    {
      System.out.println(  );
    }
  }
}

In Java, the index of an array starts at 0 and counts up to one less than the number of elements in the array. Counting loops can easily do that. The example program (above) does that, except for a blank or two.

The variable egArray refers to an array object that has been constructed using an initializer list.


Question 2:

Fill in the blanks so that the program prints out every element, in order. You may wish to copy and paste from the following:

    0 index++ egArray[index] index < 10

(Highlight a string and then use use "copy" and "paste" commands from the "edit" menu of your browser to paste the string into a blank. Or use control-c and control-v as shortcuts for copy and paste.)