Exercise 7.2

package chapter6;

public class ArrayMethods
{
    private int[] values;
    public ArrayMethods(int[] initialValues)
    {
        values = initialValues;
    }

    public  void swapFirstAndLast()
    {
         int first = values[0];
        int last = values.length;
        values[0] = values[last-1];
        values[last-1] = last;
    }

    public void shiftRight()
    {
        int temp = values[values.length - 1];
        if(values.length > 1)
        {
            System.arraycopy(values,0,values,1, values.length - 1);
        }

        values[0] = temp;
    }

    public void replaceAllEvensZero()
    {
          for (int i = 0; i <= values.length; i++)
          {
              if(i % 2 == 0)
              {
                  values[i] = 0;
              }
          }
    }

    public void replaceLargestNeighbors()
    {
        for (int i = 0; i <= values.length; i++)
        {
            if( i != 0 ||  i != values.length)
            {
                if (values[i + 1] > values[i - 1])
                {
                    values[i] = values[i + 1];
                }

                else if (values[i - 1] > values[i + 1])
                {
                    values[i] = values[i=1];
                }
            }
        }
    }

    public void removeMiddleNumber(int currentSize)
    {
        currentSize = values.length;
        if (values.length % 2 == 0)
        {
            for (int i = (values.length - (values.length * (1/2)))  + 1; i < currentSize; i++)
            {
            values[i - 1] = values[i];
            }
            currentSize--;
        }

        else if (values.length % 2 != 0)
        {
            for (int i = (values.length - values.length % 2)  + 1; i < currentSize; i++)
            {
            values[i - 1] = values[i];
            }
            currentSize--;
        }
    }

    public void moveEvenstoThefront()
    {
        for (int i = 0; i <= values.length; i++)
        {
            int swapPos = 0;
            if (values[i] % 2 == 0)
            {
                 int temp = values[swapPos];
                    values[swapPos] = values[i];
                    values[i] = temp;
                    swapPos += 1;
            }
        }
    }
}