ListRunner.java

public class ListRunner{
	
	public static void main(String args[]){
			MyList ml = new MyList();
			//for( i = 0; i< 20; i++)
			ml.add(1);
			ml.add(2);
			ml.add(3);
			ml.add(4);
			ml.add(5);
			ml.add(6);
			ml.add(7);
			ml.add(8);
			ml.add(9);
			ml.add(10);

			
	
			System.out.println(ml.get(1));
			System.out.println(ml.get(2));
			System.out.println(ml.get(3));
			System.out.println(ml.get(4));
			System.out.println(ml.get(5));
			System.out.println(ml.get(6));
			System.out.println(ml.get(7));
			System.out.println(ml.get(8));
			System.out.println(ml.get(9));
			System.out.println(ml.get(10));

				
			

	}
}

MyList.java

public class MyList{
	
	private int[] arr;
	private int[] newArr;
	private int lastUsedIndex;
	
	public MyList(){
		arr = new int[1];
		lastUsedIndex = 0;
	}
	public void add(int e){
		if(arr.length <= lastUsedIndex){
			newArr = new int[lastUsedIndex + 1];
			newArr[lastUsedIndex] = e;
			for(int i = 0 ;i < lastUsedIndex; i ++){
				arr = new int[newArr.length];
			}
			arr = newArr;
			//System.out.println(arr[1]);
		//	System.out.println(newArr(length);
		}else{
			arr[lastUsedIndex] = e;
			//System.out.println(arr[0]);
		}
		lastUsedIndex++;
		//System.out.println(e);
	}
	public int get(int index){
		return arr[2];
	}
	public void addAll(int[] e){
	///////////////////////////////////////////////////////////
	//add all of the elements in an array into the array list//
	///////////////////////////////////////////////////////////
	}
	public int size(){
		return lastUsedIndex;
	//return the size of the arrayList//
	////////////////////////////////////
	}
	public int remove(){
		arr[lastUsedIndex] = arr[lastUsedIndex - 1];
		return arr[lastUsedIndex];
	}
	public int arraycont(){
		return arr[0];
	
	}
}