/*
 * MyList.java
 *
 * Created on November 25, 2004, 5:13 PM
 */

/**
 *
 * @author  levenick
 */
public class MyIntArrayList {
    
    private static int MAX_VALUE = 10000;
    int [] list;
    int last;  // where is the last thing in this list
    
    /** Creates a new instance of List */
    public MyIntArrayList() {
        list = new int[MAX_VALUE];
        last = -1;
    }
    
    public int elementAt(int i) {
        return list[i];
    }
    
    public void replaceElementAt(int nuValue, int i) {
        list[i] = nuValue;
    }
    
    public void removeElementAt(int removalIndex) {
        for (int i=removalIndex; i<last; i++)
            list[i] = list[i+1];
        last--;
    }
    
    public void addElementAt(int insertMe, int putHereIndex) {
        for (int i=last; i>=putHereIndex; i--)
            list[i+1] = list[i];
        list[putHereIndex] = insertMe;
        last++;
    }
    
    public void addElement(int nu) {
        list[++last] = nu;
    }
    
    public int length() {
        return last+1;
    }
    
    public void makeEmpty() {
        last = -1;
    }
    
    public String toString() {
        String returnMe="{";
        
          for (int i=0; i<length(); i++) 
            returnMe += "," + list[i];
      
        return returnMe+"}";
    }
}