stringList.java

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

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

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

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

    public void add(String 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, String d){
        if (data.length<=numItems)
	    grow();
	for (int i = numItems;i > pos;i--){
	    data[i]=data[i-1];
	}
	data[pos]=d;
        numItems = numItems+1;
        
    }

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

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

    public void set(int pos, String d) {
	data[pos] = d;
    }
	
    public String find(String n)
    {
	for(int i = 0; i < numItems; i++)
	{
	    if(data[i].equals(n))
	    {
		return data[i];
	    }
	}
	return null;
    }

    public void fremove(String n)
    {
	for(int i = 0; i < numItems; i++)
	{
	    if(data[i].equals(n))
	    {
		remove(i);
	    }
	}
    }
}