myStringList.java

// Worked with Ling Liang Dong and Andrew Sikowitz

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 void add(int pos, String d) {
        if (isFull()) 
            grow();
        
        // shift things over to make room
        for (int i=numItems;i>=pos;i--) {
            data[i]=data[i-1];
        }
        data[pos]=d;
        numItems++;
    }
    
    public void remove(int pos) {
        for (int i=pos; i< numItems;i++) 
            data[i]=data[i+1];
        numItems--;
    }


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

    public void set(int pos, String d) {
        data[pos]=d;
    }

    public int size() {
        return numItems;
    }

    public String toString() {
        String s = Arrays.toString(data)+" : "+numItems;
        return s;
    }
    public String find(String d){
        for (int i = 0; i<numItems; i++){
            if (data[i].equals(d)){
                return data[i];
            }
        }
        return null;
    }
    public void fremove(String d){
        if (find(d).equals(null)){
            System.out.println("Number not found.");
        }
        else {
            for (int i=0; i<numItems; i++){
                if (data[i].equals(d)){
                    remove(i);
                    numItems = numItems - 1;
                    break;
                }
            }
        }
    }
}