Code for List ADT in class section 2G

DemoList.java

package list;

import java.util.Arrays;

public class DemoList
{
	int[] list = new int[10];

	public static void main(String[] args)
	{
		DemoList list1 = new DemoList();

		list1.insertItem(42);
		list1.insertItem(43);
		list1.insertItem(44);
		list1.insertItem(45);
		list1.insertItem(46);

		System.out.println("before " + Arrays.toString(list1.list));

		list1.removeItem(2);

		System.out.println("after " + Arrays.toString(list1.list));

	}

	void insertItem(int value)
	{
		for (int i = 0; i < list.length; i++)
		{
			if (list[i] == 0)
			{
				list[i] = value;
				break;
			}
		}
	}

	void removeItem(int index)
	{
		int i = 0;

		for (i = index ; i < list.length - 1 ; i++)
		{
//			System.out.print(list[i] + " <-- " + list[i+1] + "\n");
			list[i] = list[i + 1];
		}

		list[list.length - 1] = 0;
//		set the last element as 0
	}

	int isEmpty()
	{
		if (list[0] == 0)
		{
			return 1;
		}
		else
		{
			return 0;
		}
	}


	int isFull()
	{
		if (list[list.length - 1] != 0)
		{
			return 1;
		}
		else
		{
			return 0;
		}
	}

}