myList.java

import java.util.Arrays;


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 (numItems < data.length){
	    for (int i= pos+1; i<data.length; i++){
	        data[i] = data[i-1];
	    }
	    data[pos] = d;
	    numItems++;
	}
	else{
	    insert(pos, d);
	}
    }

    public void remove(int pos) {
	int[] result = new int[data.length];
	for(int i=0;i<pos;i++){
		result[i]=data[i];
	}
	for(int i=pos;i<result.length;i++){
		if(i==(result.length-1)){
			result[i]=0;
			break;
		}
		result[i]=data[i+1];
	}
	data = result;
	numItems--;	
    }

    public int size() {
	return numItems;
    }

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

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