### Set Up Broker Connection Parameters (Java)

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Configures broker connection parameters, including server selection and NJ4X API activation. It defines a static `BrokerConfig` class with an activation key and a default broker server. The connection is then established using the configured broker details.

```java
// Configure broker settings
public class BrokerConfig {
    public static final String JFX_ACTIVATION_KEY = "2082621138";

    // Default broker server
    public static final Broker PAPER_SERVER = new Broker(
        System.getProperty("default_broker", "Pepperstone-Demo02").trim()
    );

    static {
        if (JFX_ACTIVATION_KEY != null) {
            System.setProperty("jfx_activation_key", JFX_ACTIVATION_KEY);
        }
    }
}

// Connect using configured broker
mt4Util.connect("127.0.0.1", 7788, BrokerConfig.PAPER_SERVER, username, password);
```

--------------------------------

### Prepare and Sort Order Data for Table Display (Java)

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Prepares order data for display in a trading interface table by extracting relevant information and sorting it by ticket number using the quicksort algorithm. This method takes an ArrayList of OrderInfo objects and converts it into a 2D Object array suitable for a JTable. Dependencies include the OrderInfo class and a custom OrderUtil.quickSort method.

```java
// Prepare order data for table display
ArrayList<OrderInfo> orders = mt4Util.getOrders();
Object[][] cells = new Object[orders.size()][10];
DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

for (int i = 0; i < orders.size(); i++) {
    OrderInfo order = orders.get(i);
    cells[i][0] = i + 1;                               // Row number
    cells[i][1] = order.ticket();                      // Order ticket
    cells[i][2] = format.format(order.getOpenTime());  // Time
    cells[i][3] = order.getType();                     // Type
    cells[i][4] = order.getLots();                     // Size
    cells[i][5] = order.getSymbol();                   // Symbol
    cells[i][6] = order.getOpenPrice();                // Price
    cells[i][7] = order.getCommission();               // Commission
    cells[i][8] = order.getSwap();                     // Swap
    cells[i][9] = order.getProfit();                   // Profit
}

// Sort by ticket number
OrderUtil.quickSort(cells, 0, orders.size() - 1);

// Create and display table
JTable table = new JTable(cells, columnNames);
```

--------------------------------

### Manage Trading Account Configurations (Java)

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Manages trading parameters including lot sizes, maximum trades, and risk management settings across all accounts. This snippet demonstrates setting up spinners for maximum lots and trades, defining a text field for lot size, and calculating total lots for the next trade based on account equity.

```java
// Configure account settings
AccountConfig accountConfig = new AccountConfig();

// Setup spinners for max lots and trades
SpinnerNumberModel maxLotsModel = new SpinnerNumberModel(50, 1, 100, 1);
JSpinner maxLotsSpinner = new JSpinner(maxLotsModel);

SpinnerNumberModel maxTradesModel = new SpinnerNumberModel(100, 1, 200, 1);
JSpinner maxTradesSpinner = new JSpinner(maxTradesModel);

// Setup lot size calculation
JTextField lotSizeText = new JTextField("2.5");

accountConfig.setMaxLotsSpinner(maxLotsSpinner);
accountConfig.setMaxTradesSpinner(maxTradesSpinner);
accountConfig.setLotSizeText(lotSizeText);

// Calculate lots based on equity
double accountEquity = mt4Util.accountEquity();
double totalLotsForNextTrade = accountEquity / (1000 / 2.5);
accountVO.setTotalLotsForNextTrade(totalLotsForNextTrade);
```

--------------------------------

### Manage Multiple Account Logins with Progress Indicators (Java)

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Handles concurrent login attempts for multiple trading accounts. It sets up a list of accounts, creates a login listener with a thread pool, and attaches it to a login button. Failed logins display error messages, while successful ones proceed to the trading panel.

```java
// Setup multiple accounts
List<AccountVO> accountList = new ArrayList<>();
accountList.add(new AccountVO(accountText1, passwordText1, new MT4ConnectionUtil(1)));
accountList.add(new AccountVO(accountText2, passwordText2, new MT4ConnectionUtil(2)));
accountList.add(new AccountVO(accountText3, passwordText3, new MT4ConnectionUtil(3)));

// Create login listener with thread pool
LoginListener loginListener = new LoginListener(
    frame,
    loginPanel,
    processingLabel,
    accountList,
    accountConfig
);

// Login processes each account concurrently
loginButton.addActionListener(loginListener);
// On click, attempts login for all accounts
// Failed accounts show error message
// Successful accounts proceed to trading panel
```

--------------------------------

### Save and Retrieve Account Credentials for Auto-Login (Java)

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Implements persistent storage for account credentials, saving them securely in the system's temporary directory to enable auto-login functionality. Configuration is automatically saved upon successful login and can be retrieved later to pre-fill login forms.

```java
// Configuration is automatically saved on successful login
MT4ConnectionUtil mt4Util = new MT4ConnectionUtil(1);
mt4Util.connect(username, password); // Saves config automatically

// Retrieve saved configuration
String[] config = mt4Util.getConfig();
if (config != null) {
    String savedUsername = config[0];
    String savedPassword = config[1];
    // Pre-fill login form
    accountText.setText(savedUsername);
    passwordText.setText(savedPassword);
}
```

--------------------------------

### Calculate Order Lot Sizes using OrderUtil

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Calculates the optimal distribution of lot sizes for multiple orders based on a total desired lot amount and a maximum lot size per individual order. This utility function handles fractional remainders and is used to determine lot sizes before placing trades.

```java
// Calculate lot distribution
double totalLots = 15.75;  // Total lots to trade
double maxLots = 5.0;      // Maximum lots per order

double[] lotSizes = OrderUtil.calculateOrderLots(totalLots, maxLots);
// Returns: [5.0, 5.0, 5.0, 0.75]

// Use calculated lots to place multiple orders
for (double lots : lotSizes) {
    mt4Util.orderSendAsynchronously(
        "EURUSD",
        TradeOperation.OP_BUY,
        lots,
        0, 10, 0, 0, null, 0, null
    );
}
```

--------------------------------

### Connect to MT4 Server using NJ4X API

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Establishes a connection to an MT4 server and authenticates a trading account using the NJ4X API. It retrieves account metrics like equity and balance upon successful connection. This function is crucial for initiating communication with the trading server.

```java
// Connect to MT4 server
MT4ConnectionUtil mt4Util = new MT4ConnectionUtil(1); // Account slot number
try {
    boolean connected = mt4Util.connect("12345678", "myPassword");
    if (connected) {
        // Connection successful, retrieve account info
        double equity = mt4Util.accountEquity();
        double balance = mt4Util.accountBalance();
        double profit = mt4Util.accountProfit();
        System.out.println("Equity: " + equity + ", Balance: " + balance);
    }
} catch (Exception e) {
    System.err.println("Connection failed: " + e.getMessage());
}
```

--------------------------------

### Place Asynchronous Buy Order with NJ4X API

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Sends a buy order to the MT4 server asynchronously using the NJ4X API. It utilizes thread pools to prevent UI blocking and allows for simultaneous order placement. The function returns a Future object representing the order, and subsequent calls can wait for all jobs to complete.

```java
// Place asynchronous buy order
MT4ConnectionUtil mt4Util = accountVO.getMt4ConnectionUtil();
String symbol = "EURUSD";
TradeOperation operation = TradeOperation.OP_BUY;
double lots = 0.5;
int slippage = 10;

Future<Long> orderFuture = mt4Util.orderSendAsynchronously(
    symbol,           // Currency pair
    operation,        // OP_BUY or OP_SELL
    lots,            // Lot size
    0,               // Price (0 = market price)
    slippage,        // Slippage in points
    0,               // Stop loss
    0,               // Take profit
    null,            // Comment
    0,               // Magic number
    null             // Expiration
);

// Wait for all orders to complete
mt4Util.waitForAllJobsToComplete();
mt4Util.loadOrders(); // Refresh order list
```

--------------------------------

### Retrieve Real-Time Order Data from MT4 (Java)

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Fetches current open orders from MT4, providing comprehensive details such as tickets, timestamps, types, and profit/loss metrics. The code iterates through the retrieved orders, processing and printing key information like ticket number, type, lots, symbol, and prices.

```java
// Load orders from MT4
MT4ConnectionUtil mt4Util = accountVO.getMt4ConnectionUtil();
mt4Util.loadOrders();
ArrayList<OrderInfo> orders = mt4Util.getOrders();

// Process order information
DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
double totalLots = 0;
for (OrderInfo order : orders) {
    long ticket = order.ticket();
    String openTime = format.format(order.getOpenTime());
    TradeOperation type = order.getType(); // OP_BUY or OP_SELL
    double lots = order.getLots();
    String symbol = order.getSymbol();
    double openPrice = order.getOpenPrice();
    double commission = order.getCommission();
    double swap = order.getSwap();
    double profit = order.getProfit();

    totalLots += lots;
    System.out.println("Order #" + ticket + " " + type + " " + lots + " lots " + symbol);
}
```

--------------------------------

### Close All Open Orders Asynchronously using NJ4X API

Source: https://context7.com/nj4x/pepperstone-trade-platform/llms.txt

Closes all currently open buy and sell positions for a specified MT4 account asynchronously. It retrieves the list of existing orders and iterates through them, sending close requests via the NJ4X API. Performance metrics can be captured during this process.

```java
// Close all orders for an account
AccountVO accountVO = accountList.get(0);
MT4ConnectionUtil mt4Util = accountVO.getMt4ConnectionUtil();
int maxTradeLots = 100; // Maximum trades to close

// Get current orders
ArrayList<OrderInfo> allOrders = mt4Util.getOrders();
for (OrderInfo order : allOrders) {
    if (order.getType() == TradeOperation.OP_BUY ||
        order.getType() == TradeOperation.OP_SELL) {
        mt4Util.orderCloseAsynchronously(
            order,
            order.getLots(),  // Close full position
            0,                // Price (0 = market price)
            10                // Slippage
        );
    }
}

mt4Util.waitForAllJobsToComplete();
mt4Util.loadOrders(); // Refresh order list
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.