myStringList.java

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


public class myStringList {
    private String[] data;
    private int numItems;
    
    public myStringList() {
	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 insert(int pos, String d) {
	if (isFull()) {
	    grow();
	}
	for (int i = numItems; i  > pos; i--){
	    data[i] = data[i-1];
	}
	data[pos] = d;
	numItems = numItems + 1;
    }


    public void remove(int pos) {
	int i = 0;
	for ( i = pos; i < numItems -1; i++){
	    data[i] = data [ i +1];
	}
	data[i] = null;
	numItems--;
    }


    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 d) {

        for (int i = 0; i < numItems; i++ ) {
            if (data[i].equals(d)) {
                return data[i];
            }
        }
        return "not found";
    }

    public void fRemove (String d) {
        int pos = -1;
        for (int i = 0; i < numItems; i++) {
            if (data[i].equals(d)) {
                pos = i;
                i = numItems;
            }

        }

        if (pos !=-1) {
            remove (pos);
        }

    }

}