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Inventory

public class Inventory {

    private String id;
    private String description;
    private boolean stock_status;
    private double item_price;

    public Inventory(String id, String description, boolean stock_status, double item_price) {
        this.id = id;
        this.description = description;
        this.stock_status = stock_status;
        this.item_price = item_price;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public boolean getStock_status() {
        return stock_status;
    }

    public void setStock_status(boolean stock_status) {
        this.stock_status = stock_status;
    }

    public double getItem_price() {
        return item_price;
    }

    public void setItem_price(double item_price) {
        this.item_price = item_price;
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("Inventory{");
        sb.append("id=").append(id);
        sb.append(", description=").append(description);
        sb.append(", stock_status=").append(stock_status);
        sb.append(", item_price=").append(item_price);
        sb.append('}');
        return sb.toString();
    }    
}

Main

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Control;
import javafx.scene.control.TextField;
import javafx.scene.layout.HBox;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
 
public class App extends Application { 
    
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) throws Exception { 
        
        TextField tfId = new TextField();
        Button btnCheckStatus = new Button("Check Status");
        btnCheckStatus.setOnAction((t) -> {
            CheckItemStatus(tfId, getInventory());
        });
        HBox hBox = new HBox(tfId, btnCheckStatus);
        hBox.setMaxSize(Control.USE_PREF_SIZE, Control.USE_PREF_SIZE);
        
        Scene scene = new Scene(new StackPane(hBox), 800, 300);
        stage.setScene(scene);
        stage.show();        
    }
    
    //Get the inventory array!
    public Inventory[] getInventory()
    {
        Inventory[] inventoryArr = new Inventory[42];

        inventoryArr[0] = new Inventory("14", "Stanley #2 Philips Screwdriver", true, 6.95);
        inventoryArr[1] = new Inventory("2342", "Polar USB mini desk fan", false, 10.50);
        inventoryArr[2] = new Inventory("22389", "Swingline Model B2200 stapler", true, 18.00);
        inventoryArr[3] = new Inventory("3451", "Oakley Jawbreaker sunglasses", true, 236.00);
        inventoryArr[4] = new Inventory("4452", "Colnago stem - black 130mm", false, 145.99);
        inventoryArr[5] = new Inventory("56718", "Tamiya Mclaren MP4-8 Ford 1/20", false, 75.00);
        inventoryArr[6] = new Inventory("14909", "1/4in - 28tpi SS nuts", true, 1.00);
        inventoryArr[7] = new Inventory("2190", "Hefty 30 gal with handles - box 40", true, 19.00);
        inventoryArr[8] = new Inventory("22345532", "3 ft mini USB cable M-F", true, 4.50);
        inventoryArr[9] = new Inventory("678944", "EZ-ink cartrige set for Epson 4630", false, 75.00);
        inventoryArr[10] = new Inventory("234887", "2021 CSX train calendar", true, 12.95);
        inventoryArr[11] = new Inventory("198", "Box of 10 Sharpie Roller 0.5mm", true, 6.50);
        inventoryArr[12] = new Inventory("298765", "3x5 index cards - 100 count", true, 2.25);
        inventoryArr[13] = new Inventory("7654", "Bell Stratos helmet - size Lg - blue", false, 230.00);
        inventoryArr[14] = new Inventory("67YX22", "DTM Calendar for 2023", false, 14.95);
        inventoryArr[15] = new Inventory("65435689", "12x16 paper cutter with ruler", true, 35.95);
        inventoryArr[16] = new Inventory("8543", "Ritchey 1 inch threaded headset - silver", true, 45.00);
        inventoryArr[17] = new Inventory("38712987", "Wilson NCAA official softball - 1 ea", true, 5.50);
        inventoryArr[18] = new Inventory("2234983", "Wilson NCAA official softball - 1 doz", true, 55.00);
        inventoryArr[19] = new Inventory("23", "Tamiya 2oz paint - ferrari red", true, 2.39);
        inventoryArr[20] = new Inventory("97634", "Campagnolo 12 spd crankset - 53/39 175mm", true, 750.00);
        inventoryArr[21] = new Inventory("85456", "Campagnolo 12 spd rear der", true, 350.00);
        inventoryArr[22] = new Inventory("67913", "Gios Torino t-shirt size XXL", true, 25.00);
        inventoryArr[23] = new Inventory("387", "Brachs butterscotch hard candy - 1 lb", true, 4.50);
        inventoryArr[24] = new Inventory("113355", "The Bourne Identity - blu-ray", true, 15.95);
        inventoryArr[25] = new Inventory("1111", "Top Secret Twenty One - Janet Evanovich", true, 8.99);
        inventoryArr[26] = new Inventory("286934", "1 lb - coffee beans", true, 6.50);
        inventoryArr[27] = new Inventory("358922", "25 lbs peanuts in shell", false, 45.00);
        inventoryArr[28] = new Inventory("47831", "8x10 picture frame", true, 4.95);
        inventoryArr[29] = new Inventory("19981", "Pledge furniture polish 13oz", true, 6.50);
        inventoryArr[30] = new Inventory("228865", "3M Super 33+ electrical tape", true, 3.50);
        inventoryArr[31] = new Inventory("228865X", "3M Super 33+ electrical tape box 10", true, 32.50);
        inventoryArr[32] = new Inventory("4762", "HP copy paper ultra white - ream", true, 13.50);
        inventoryArr[33] = new Inventory("29741", "Plush teddy bear 8 inch", true, 24.00);
        inventoryArr[34] = new Inventory("339921", "Yamaha KT 100 kart engine", true, 950.00);
        inventoryArr[35] = new Inventory("115693", "Colnago C64 - Mapei frame", true, 6500.00);
        inventoryArr[36] = new Inventory("582913", "Look Keo 2 Max pedals", true, 135.00);
        inventoryArr[37] = new Inventory("4499120", "M&Ms dark chocolate w/peanuts - 3oz", true, 2.50);
        inventoryArr[38] = new Inventory("268", "Sidi Wire 2 carbon shoes", true, 499.99);
        inventoryArr[39] = new Inventory("89476", "Assos T-Evo shorts", true, 299.95);
        inventoryArr[40] = new Inventory("245667", "Colnago jersey - size 6", true, 120.00);
        inventoryArr[41] = new Inventory("RTX3452", "Laser Pointer", true, 38.80);

        return inventoryArr;
    }    
    
    //Check Item status!
    public void CheckItemStatus(TextField input, Inventory[] invArr)
    {        
        int itemFoundIndex = findItem(input, invArr);
        
        if(itemFoundIndex == -1)
        {
            System.out.println("ID " + input.getText() + " was not found!");
        }
        else 
        {
            if(!invArr[itemFoundIndex].getStock_status())
            {
                System.out.println("ID " + input.getText() + " is not in stock!");
            }
            else
            {
                System.out.println("ID " + input.getText() + " is in stock!");
            }
        }
    }

    //Return the index of the item found and -1 if no item was found!
    public static int findItem(TextField input, Inventory[] invArr) 
    {
        for (int i = 0; i < invArr.length; i++) {
            if(input.getText().equals(invArr[i].getId()))
            {
                return i;                
            }
        }
        
        return -1;
    }
}