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POAdding Objects to JFrame from another class?
 

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  1. POAdding Objects to JFrame from another class?
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    <p>I'm trying to create a blackjack program for my final project in Java. I'm still very new to Java and OOD so I apologize if my problem seems very trivial to you :(</p> <p>How my program works: I have three classes so far.</p> <p><strong>main.java</strong> This class builds my frame and runs all the other methods.</p> <p><strong>cards.java</strong> This class creates an array that holds the card values and location to picture. I have a for loop in there that auto-populates it.</p> <p><strong>hits.java</strong> This class is meant to "randomly" generate a number that will represent the chosen card. The way this works is by taking the randomly created <em>int</em> and pointing it to a matching index location on the array.</p> <p>I assign the value to string objects that I then try to add to a jlabel and then add that jlabel to my main frame. The code is as follows:</p> <p><strong>hits.java</strong></p> <pre><code>// Import necessary classes. import java.util.Random; public class hits { // Create random object. Random rand = new Random(); // Declare variables. int card; String cardVal, cardPic; // Instantiate the needed classes. main s = new main(); cards t = new cards(); // Constructor for the class. public hits() { // Randomly generate a number (0 - 9). card = rand.nextInt(10); // Populate the array. t.runCards(); // Assign the cards according to the num. generated. cardVal = t.deck[card][0]; cardPic = t.deck[card][1]; } // Run Method public void runHits() { // Add the card chosen to the GUI. s.a.setText("hello"); s.dealerCards.add(s.a); } } </code></pre> <p>I have "hello" as the text for the label because I wanted to see if perhaps my array was not populating, but even that doesn't work. If it helps here is my <strong>main.java</strong> as well (constructor and main method):</p> <pre><code>// Constructor for the main class. public main() { // Setup the MAIN container. f1.getContentPane().setLayout(new GridLayout(0, 1)); f1.setSize(200, 200); f1.add(dealerName); f1.add(dealerCards); f1.add(userCards); f1.add(userName); // Setup the inner panels. dealerCards.setLayout(new GridLayout(1, 2)); dealerCards.add(b); userCards.setLayout(new GridLayout(1, 6)); userCards.add(c); userCards.add(d); } // Build the frame. public void GUILaunch() { // Display Frame f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f1.setVisible(true); } // Main method. public static void main(String args[]) { // Distribute the dealer's/player's starting hands. hits deal = new hits(); deal.runHits(); // Launch the GUI main gui = new main(); gui.GUILaunch(); } </code></pre> <p>Hopefully I have provided enough information to help you understand what's going on here. So to sum it all up: <strong>how can i add my jlabel(from another class) holding the randomly selected card to my main frame</strong></p> <p>Thanks in advance.</p>
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    1. USlemonpole
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    1. COwhat is the `a` attribute that you refer to like this: `s.a.setText("hello");`? Am I missing something?
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      1. POAdding Objects to JFrame from another class?
      1. USTrevor Arjeski
    2. COthat is the name of my JLabel... sorry you couldn't see it; I have it declared in my main class
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      1. POAdding Objects to JFrame from another class?
      1. USlemonpole
    3. COplease learn java naming conventions and stick to them
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      1. POAdding Objects to JFrame from another class?
      1. USkleopatra
 

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