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 void add(int d) {
        
        if (numItems>=data.length) {
	    // System.out.println("Growing from "+data.length+" to "+data.length*1.5);
            // "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;
        }
        data[numItems]=d;
        numItems = numItems + 1;
    }
    
    public void insert(int pos, int d){
	int[] temparray = new int[data.length + 1];
	for (int i = 0; i < pos;i++){
	    temparray[i] = data[i];
	}
	temparray[pos] = d;
	for (int i = pos+1;i < temparray.length;i++){
	    temparray[i] = data[i-1];
	}
	data = temparray;
	numItems = numItems + 1;
    }

    public void remove(int pos){
	
	for (int i = pos;i < data.length-1 ;i++){
	    data[i] = data[i+1];
	}
	data[data.length - 1] = 0;
	//numItems = numItems - 1;
   
    }
    
    public String toString() {
        String s = Arrays.toString(data)+" : "+numItems;
        return s;
    }
        
}