You are to write a GUI program that will allow a user to buy, sell and view stocks in a stock
portfolio.
Objective:
Write a GUI program that maintains a cash balance, list of stock holdings, supports buying and
selling of stocks and displays the current portfolio inventory.
Program Capabilities:
1. Allow a user to buy a stock with a given number of shares and price per share.
2. Display the current portfolio (stock ticker, number of shares, initial price).
3. Update the portfolio display for purchases and sales.
4. Allow the user to sell all of the shares of a given stock.
5. Give the user an initial cash balance, and update and display the balance according to the
user\'s purchases and sales.
6. Ignore any transaction that causes the cash position to go below $0.
USE OF PREVIOUS StockHolding and PortfolioList LABS IS ADVISED. (I\'ve including my
solutions to these below)
This is my written code from earlier homework:
public class StockHolding {
private String ticker;
private int numShares;
private double initialSharePrice;
private double currentSharePrice;
public StockHolding(String ticker, int numberShares, double initialPrice) {
this.ticker = ticker;
numShares = numberShares;
initialSharePrice = initialPrice;
currentSharePrice = initialPrice;
}
public double getCurrentValue() {
return numShares * getCurrentSharePrice();
}
public double getInitialCost() {
return numShares * getInitialSharePrice();
}
public double getCurrentProfit() {
return getCurrentValue() - getInitialCost();
}
public double getCurrentSharePrice() {
return currentSharePrice;
}
public void setCurrentSharePrice(double currentSharePrice) {
this.currentSharePrice = currentSharePrice;
}
public String getTicker() {
return ticker;
}
public int getShares() {
return numShares;
}
public double getInitialSharePrice() {
return initialSharePrice;
}
@Override
public String toString() {
return \"Stock \" + ticker + \", \" + numShares + \", shares bought at \"
+ initialSharePrice + \", current price \"
+ currentSharePrice;
}
}
AND
import java.util.ArrayList;
public class PortfolioList {
private ArrayList portfolio;
public PortfolioList() {
portfolio = new ArrayList();
}
public void add(StockHolding stock) {
portfolio.add(stock);
}
public StockHolding find(String ticker) {
for (int i = 0; i < portfolio.size(); i++) {
StockHolding sh = portfolio.get(i);
if (sh.getTicker().equals(ticker)) {
return sh;
}
}
return null;
}
public void remove(String ticker) {
int pos = -1;
for (int i = 0; i < portfolio.size(); i++) {
StockHolding sh = portfolio.get(i);
if (sh.getTicker().equals(ticker)) {
pos = i;
}
}
if (pos != -1) {
portfolio.remove(pos);
}
}
I\'ve been staring at this for two days, and I am lost. Please, any guidance/help would be greatly
appreciated.
Honestly don\'t even need a full solution, just need something to kick start. A comment skeleton
would help a ton. Thanks!
Solution
SOURCE CODE:
package stock;
public class StockHolding {
private String ticker;
private int numShares;
private do.
Andreas Schleicher presents at the launch of What does child empowerment mean...
You are to write a GUI program that will allow a user to buy, sell a.pdf
1. You are to write a GUI program that will allow a user to buy, sell and view stocks in a stock
portfolio.
Objective:
Write a GUI program that maintains a cash balance, list of stock holdings, supports buying and
selling of stocks and displays the current portfolio inventory.
Program Capabilities:
1. Allow a user to buy a stock with a given number of shares and price per share.
2. Display the current portfolio (stock ticker, number of shares, initial price).
3. Update the portfolio display for purchases and sales.
4. Allow the user to sell all of the shares of a given stock.
5. Give the user an initial cash balance, and update and display the balance according to the
user's purchases and sales.
6. Ignore any transaction that causes the cash position to go below $0.
USE OF PREVIOUS StockHolding and PortfolioList LABS IS ADVISED. (I've including my
solutions to these below)
This is my written code from earlier homework:
public class StockHolding {
private String ticker;
private int numShares;
private double initialSharePrice;
private double currentSharePrice;
public StockHolding(String ticker, int numberShares, double initialPrice) {
this.ticker = ticker;
numShares = numberShares;
initialSharePrice = initialPrice;
currentSharePrice = initialPrice;
}
public double getCurrentValue() {
return numShares * getCurrentSharePrice();
}
public double getInitialCost() {
2. return numShares * getInitialSharePrice();
}
public double getCurrentProfit() {
return getCurrentValue() - getInitialCost();
}
public double getCurrentSharePrice() {
return currentSharePrice;
}
public void setCurrentSharePrice(double currentSharePrice) {
this.currentSharePrice = currentSharePrice;
}
public String getTicker() {
return ticker;
}
public int getShares() {
return numShares;
}
public double getInitialSharePrice() {
return initialSharePrice;
}
@Override
public String toString() {
return "Stock " + ticker + ", " + numShares + ", shares bought at "
+ initialSharePrice + ", current price "
+ currentSharePrice;
}
}
AND
import java.util.ArrayList;
public class PortfolioList {
private ArrayList portfolio;
public PortfolioList() {
portfolio = new ArrayList();
3. }
public void add(StockHolding stock) {
portfolio.add(stock);
}
public StockHolding find(String ticker) {
for (int i = 0; i < portfolio.size(); i++) {
StockHolding sh = portfolio.get(i);
if (sh.getTicker().equals(ticker)) {
return sh;
}
}
return null;
}
public void remove(String ticker) {
int pos = -1;
for (int i = 0; i < portfolio.size(); i++) {
StockHolding sh = portfolio.get(i);
if (sh.getTicker().equals(ticker)) {
pos = i;
}
}
if (pos != -1) {
portfolio.remove(pos);
}
}
I've been staring at this for two days, and I am lost. Please, any guidance/help would be greatly
appreciated.
Honestly don't even need a full solution, just need something to kick start. A comment skeleton
would help a ton. Thanks!
Solution
SOURCE CODE:
4. package stock;
public class StockHolding {
private String ticker;
private int numShares;
private double initialSharePrice;
private double currentSharePrice;
public StockHolding(String ticker, int numberShares, double initialPrice) {
this.ticker = ticker;
numShares = numberShares;
initialSharePrice = initialPrice;
currentSharePrice = initialPrice;
}
public double getCurrentValue() {
return numShares * getCurrentSharePrice();
}
public double getInitialCost() {
return numShares * getInitialSharePrice();
}
public double getCurrentProfit() {
return getCurrentValue() - getInitialCost();
}
public double getCurrentSharePrice() {
return currentSharePrice;
}
public void setCurrentSharePrice(double currentSharePrice) {
this.currentSharePrice = currentSharePrice;
}
public String getTicker() {
return ticker;
}
5. public int getShares() {
return numShares;
}
public double getInitialSharePrice() {
return initialSharePrice;
}
public void setNumShares(int numShares) {
this.numShares = numShares;
}
@Override
public String toString() {
return "Stock " + ticker + ", " + numShares + ", shares bought at "
+ initialSharePrice + ", current price "
+ currentSharePrice;
}
}
--------------------------------------------------------------------------------------------------------------------
---
package stock;
import java.util.ArrayList;
/**
*
* @author Gojkid
*/
public class PortfolioList {
private ArrayList portfolio;
public PortfolioList() {
portfolio = new ArrayList();
}
public void add(StockHolding stock) {
portfolio.add(stock);
}
6. public StockHolding find(String ticker) {
for (int i = 0; i < portfolio.size(); i++) {
StockHolding sh = portfolio.get(i);
if (sh.getTicker().equals(ticker)) {
return sh;
}
}
return null;
}
public int getPos(StockHolding sh)
{
return portfolio.indexOf(sh);
}
public int getSize()
{
return portfolio.size();
}
public StockHolding getElement(int i) {
return portfolio.get(i);
}
public void remove(String ticker) {
int pos = -1;
for (int i = 0; i < portfolio.size(); i++) {
StockHolding sh = portfolio.get(i);
if (sh.getTicker().equals(ticker)) {
pos = i;
}
}
if (pos != -1) {
portfolio.remove(pos);
}
}
}
--------------------------------------------------------------------------------------------------------------------
---
7. /*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* StockTrading.java
*
* Created on Nov 29, 2016, 12:43:57 AM
*/
package stock;
import javax.swing.table.DefaultTableModel;
public class StockTrading extends javax.swing.JFrame {
/** Creates new form StockTrading */
public StockTrading() {
initComponents();
}
@SuppressWarnings("unchecked")
private void initComponents() {
ticker = new javax.swing.JComboBox();
jScrollPane1 = new javax.swing.JScrollPane();
portfolio = new javax.swing.JTable();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
price = new javax.swing.JTextField();
number = new javax.swing.JSpinner();
buy = new javax.swing.JButton();
jLabel3 = new javax.swing.JLabel();
balance = new javax.swing.JTextField();
sell = new javax.swing.JButton();
jLabel4 = new javax.swing.JLabel();
message = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Stock Trading Program");
ticker.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "A – Agilent
Technologies", "AAPL – Apple Inc.", "BRK.A – Berkshire Hathaway", "C – Citigroup",
"GOOG – Alphabet Inc.", "HOG – Harley-Davidson Inc.", "HPQ – Hewlett-Packard",
