MyList.java

public class MyList {
    private int[] data;
    private int numItems;
    
    public MyList() {
	data = new int[5];
	numItems=0;
    }

    public boolean isFull() {
	return numItems >= data.length;
    }

    public void grow() {
	    // "grow" the array by creating a new one and copying over
	    int[] tmpArray = new int[data.length+data.length/2];
	    for (int i=0;i<data.length;i++) 
		tmpArray[i]=data[i];
	    data = tmpArray;
    }

    public void add(int d) {
	if (isFull()){
	    grow();
	}
        data[numItems]=d;
        numItems = numItems + 1;
    }
    
    // public String toString() {
    //	String s = Arrays.toString(data)+" : "+numItems;
    //	return s;
    //}
	
    public void add(int pos, int d) {
	if (isFull())
	    grow();
	for (int i = pos + 1; i < data.length; i++)
	    data[i] = data[i-1];
	data[pos] = d;
    }

    public void remove(int pos) {
	for (int i = pos; i < data.length-1; i++)
	    data[i] = data[i+1];
	numItems = numItems - 1;
    }
    
    public int size() {
	return numItems;
    }

    public int get(int pos) {
        return data[pos];
	}

    public void set(int pos, int d) {
        data[pos] = d;
    }
}