purpose of a function

[alex lotel]

the first loop switches the i'th member backoward like in insertion sort till it gets a valuse smalle then maxvalue
but it switch always with a[i-2]
so i cant see the purpose


the second loop does a similar thing
but i cant see what is the general purpose
??

public static void insert2 (int[] a, int i)
{
int maxValue = Math.max(a[i-1], a[i]);
int minValue = Math.min(a[i-1], a[i]);
while (i>1 && a[i-2] >maxValue)
{
a[i]= a[i-2];
i--;
}
a[i] = maxValue;
i--;
while (i>0 && a[i-1] >minValue)
{
a[i]= a[i-1];
i--;
}
a[i] = minValue;

[Joanne Neal]

The value of i changes each time through the loop so a[i-2] refers to a different element of the array each time.

The first loop moves some elements of the array forward two elements.
The second loop moves some elements of the array forward one element.

Try printing out the values of the array at the start and after each loop if you're still not sure what is happening.