myList.java

import java.io.*;
import java.util.*;

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 = data.length -1; i > pos; i--){
		data[i] = data[i-1];
	    }
	    data[pos] = d;
	}
	else {
	    for (int i = data.length -1; i> pos; i --){
		data[i] = data[i-1];
	    }
	    data[pos]= d;
	}
	numItems= numItems+1;
    }
		// inserts the value d at location (index) pos)
 
    public void remove(int pos) {
	int[] temp = new int[data.length-1];
	for (int i = 0; i < pos; i ++){
	    temp[i] = data[i];}
	for (int i = pos; i<temp.length; i ++){
	    temp[i] = data[i +1];}
	data = temp;
	numItems= numItems-1;
    }
		// removes the item at location pos

    public int size() {
	return numItems;
	// return the number of items in the list
    }
    public int get(int pos) {
	return data[pos];
	//return the item at pos;
    }
    public int set(int pos, int d) {
	data[pos] = d;
	
	// change the item at pos to have the value d
	return 1; }


}