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Cannot call constructor component from ActionPerformed


Cannot call constructor component from ActionPerformed

By : umesh verma
Date : November 21 2020, 11:01 PM
I wish this help you bottomLabel is visible only inside the constructor, as it's not declared at class-level.
Declare it at class-level (as you did with x, low, high, etc) to make it work:
code :
public class Assignment1 extends JFrame implements ActionListener {

    // declare variables
    int x = 101;
    int low = 0;
    int high = 100;
    int guess = (high + low) / 2;
    int counter = 0;
    JLabel bottomLabel;  // <==


    public Assignment1() {
        // [...] other assignments
        bottomLabel = new JLabel("Game Over, your number is NN, i got it in N times. Wanna play again?");
        // [...] rest of class


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Java - Why do component functions call actionPerformed?

Java - Why do component functions call actionPerformed?


By : hokix
Date : March 29 2020, 07:55 AM
To fix the issue you can do If the problem is just the initial setting, you can defer adding the listener until after both have been initialized. There's more discussion here.
Call Component Constructor in Controller

Call Component Constructor in Controller


By : robin hood
Date : March 29 2020, 07:55 AM
This might help you You can pass the Configure::read() value as a setting property, or put the constructor logic within the initialize() method of your component.
code :
class MyComponent extends Component
{
    private $client;

    public function __construct (ComponentCollection $collection, $settings = array())
    {
        parent::__construct($collection, $settings);
        $this->client = new apiClient();
        $this->client->setApprovalPrompt ($settings['approval']);
    }
}
public $components = array (
    'My'    => array (
        'approval' => Configure::read('approvalPrompt');
    )
);
class MyComponent extends Component
{
    private $client;

    public function __construct (ComponentCollection $collection, $settings = array())
    {
        parent::__construct($collection, $settings);
        $this->client = new apiClient();
    }

    public function initialize()
    {
        $this->client->setApprovalPrompt (Configure::read('approvalPrompt'));
    }
}
Moving Object along a path: How to call actionPerformed only after previous actionPerformed has finished?

Moving Object along a path: How to call actionPerformed only after previous actionPerformed has finished?


By : Mhoglund
Date : March 29 2020, 07:55 AM
Any of those help I have a question about Swing Timer, specifically how to call actionPerformed a number of times and waiting for the last actionPerformed to finish before executing it again. I know other people have asked this before, but none of the solutions I found work for my program.
code :
for (int i = controller.getPath().size()-1; i >= 0; i--){
     Square target = controller.getPath().get(i);
     canvas.startTimer(moving, target);
}
Call function inside constructor of component in react?

Call function inside constructor of component in react?


By : Agha Ali
Date : March 29 2020, 07:55 AM
it should still fix some issue this is scope issue, you have to preserve scope before this.statechargebeeInstancesetCheckoutCallbacks function mentioned below
code :
class XXXXX extends React.Component {
    constructor(props) {
        super(props);
        const me = this
        this.state = 
        {
            chargebeeInstance : windowChargebeeinit({
            site: "xxxxxxxxxxxxx-test"})
        }

        this.statechargebeeInstancesetCheckoutCallbacks(function(){
            return{
                close:function(){
                me.moveToNextStep();//scope issue, this will not be available here
            }
        }

    })

    }
 moveToNextStep(){
    this.props.jumpToNextStep(3);
}
Add component every time actionPerformed is called

Add component every time actionPerformed is called


By : Tay Zarlay
Date : March 29 2020, 07:55 AM
To fix this issue You need to revalidate the container after changing it's children. This forces a repaint.
You're also adding the elements to a JLabel, which is unusual. You're better off with a JPanel:
code :
        super("Urlaub");
        JFrame window = this;
        window.setSize(800, 600);
        window.setLocationRelativeTo(null);
        window.setVisible(true);

        JPanel grouped = new JPanel();
        window.getContentPane().add(grouped);
        grouped.setLayout(new FlowLayout());

        JButton addThing = new JButton("Add things");
        grouped.add(addThing);
        grouped.add(new JCheckBox("je"));
        addThing.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                String entry = JOptionPane.showInputDialog(this, "Enter item");
                JCheckBox checkItem = new JCheckBox(entry);
                grouped.add(checkItem); // this is the line which should add the JCheckBox to the JLabel/Window#
                window.getContentPane().revalidate();
            }
        });
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