logo
down
shadow

How to make a JButton that when pressed it does a new action


How to make a JButton that when pressed it does a new action

Content Index :

How to make a JButton that when pressed it does a new action
Tag : java , By : evegter
Date : November 28 2020, 04:01 AM

should help you out It happens because you generate a random number once outside the on-click event. Move it to the method a few lines below:
button1.addActionListener(new ActionListener() {
    String[] arr={"rock", "paper", "scissors"};
    Random r=new Random();

    public void actionPerformed(ActionEvent evt) {
        int randomNumber=r.nextInt(arr.length);
        tekst1.setText(arr[randomNumber]);
    }
});

Comments
No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Make method that returns when JButton is pressed


Tag : java , By : pad
Date : March 29 2020, 07:55 AM
With these it helps As you asked for an implementation with a mutex, here's what it would be like. I'm using an ActionListener though, but there's no busy wait in it. If that isn't what you desire, you atleast saw what Burkhard meant ;)
public class MyButton extends JButton implements ActionListener
{
    private Semaphore sem = new Semaphore(1);

    public MyButton(String text) throws InterruptedException
    {
        super(text);
        addActionListener(this);
        sem.acquire();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        sem.release();
    }

    public void waitForPress() throws InterruptedException {
        sem.acquire();
        //do your stuff
        sem.acquire();
        //or just
        //waitForPress()
            //if you dont want it to end.
    }

    public static void main(String[] args) throws InterruptedException {
        JFrame frame = new JFrame();
        MyButton m = new MyButton("test");
        frame.add(m);
        frame.pack();
        frame.setVisible(true);
        m.waitForPress();
        //another time, if you only want it to block twice
        m.waitForPress();
    }
}

How to make JButton reference object when pressed?


Tag : java , By : Senthil
Date : March 29 2020, 07:55 AM
wish helps you Add the Restraunts to a List Group them together (by their type) using a Map Use Collections.shuffle to randomise the List and select the first one
Take a look at

JButton repeating action depending on how many times pressed


Tag : java , By : Valentine
Date : March 29 2020, 07:55 AM
To fix this issue The problem is called out in the comment section. You are declaring multiple listeners which are calling the respective deposit() or withdraw() method every time you perform an action.
To avoid this. You can set one listener class to all of your buttons like this.
private class MySpecialListener implements ActionListener{

@Override
            public void actionPerformed(ActionEvent ae) {
               if(e.getSource == btnDesposit) // do stuff and so on
            }

}
MySpecialListener myListener = new MySpecialListener();
btnDeposit.addActionListener(myListener);
for(ActionListener al : btnEnter.getActionListeners())
 btnEnter.removeActionListener(al)

btnEnter.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent ae) {
            //convert text area into double
            double depositNumber = Double.parseDouble(ta.getText());
            sav.deposit(depositNumber);
            btnWithdraw.setEnabled(true);
            btnBalance.setEnabled(true);
        }

    });

JButton should change background when pressed works ONLY when pressed and mouse not over button


Tag : java , By : Ryan Adriano
Date : March 29 2020, 07:55 AM
may help you . Change color to red and you will observe that the problem is not what you think but a matter of look and feel. Background color of JButton is not what you think.
The problem is that Swing uses an MVC model, and that the painting is not made by the JButton but by its associated ButtonUI. This ButtonUI (actually a subclass of) is dependent on the look and feel, so that the button is painted in compliance with the current look and feel.
class MyUI extends javax.swing.plaf.basic.BasicButtonUI {
  protected void  paintText(Graphics g, AbstractButton b, Rectangle textRect, String text) {
    super.paintText(g,b,textRect,text);
  }
}

public class SampleForm extends JFrame implements ActionListener, ChangeListener{
  public SampleForm() {
    super("Window");
    fooButton = new JButton("jkljkl");
    fooButton.addActionListener(this);
    fooButton.addChangeListener(this);
    fooButton.addMouseListener(this);
    fooButton.setUI(new MyUI());

How to make the jButton action work not in just one run?


Tag : java , By : dummyadresse
Date : March 29 2020, 07:55 AM
Related Posts Related QUESTIONS :
  • Unable to find a document in Mongodb where exact date match in java
  • UsernamePasswordAuthenticationFilter skips success handler
  • Use Java filter on stream with in a stream filter
  • Default Login not successful in spring boot 2.1.7
  • Adding key value pairs from a file to a Hashmap
  • Rub regex: matching a char except when after by another char
  • Convert Base64 String to String Array
  • Escape Unicode Character 'POPCORN' to HTML Entity
  • An empty JSON field which is a boolean/nullable field in Java model, is getting converted as null
  • Mongo java driver cannot find public constructor for interface
  • How to unit test writing a file to AWS Lambda output stream?
  • How to make a GitHub GraphQL API Call from Java
  • What's the difference between @ComponentScan and @Bean in a context configuration?
  • Expected class or package adding a view using a class
  • can be delete of a element in a static array be O(1)?
  • Instance variable heap or stack ? ( with specific example)
  • Assert progress of ProgressBar in Espresso test
  • How to detect if gson.fromjson() has excess elements
  • I cant generate the proper code to select the a specific filter on a BI dashboard I am working on
  • How to Inject Dependencies into a Servlet Filter with Spring Boot Filter Registration Bean?
  • Thrift types as a Generic
  • Effective algorithm to random 4 unique integers less than a big max such as 100_000
  • Combining or and negation in Java regex?
  • Unable to instantiate default tuplizer Exception
  • Multi-tenant migration to work with quarkus
  • Ignite persisting a Set: Cannot find metadata for object with compact footer
  • Maven cannot resolve Jacob dependency using eclipse
  • testcontainers oracle database container starts before database user is created
  • Launching two spring boot apps in integration test
  • Is there a way to add a HashMap's value that is a integer array into a ArrayList?
  • Is there any way that I can get a parameter in paintComponent?
  • Empty stack with one recursive method and one iterative method
  • What's the behavior of onBackpressureBuffer in RxJava2
  • Java regex can only use 1 quantifier in a lookback (need 2)
  • How to fix error in native query : it is showing syntax error near or at
  • How to retrieve nested object from a document and display it in FirestoreRecyclerOptions?
  • Why not use ListIterator for full LinkedList Operation?
  • Android Webview EvaluateJavascript sometimes does not return a response
  • Matcher java doesn't work but regex seems to be good
  • Finding dimensions of a .gif file
  • Java Number format how to change +/- sign to custom text
  • Entity partially saved when using JOINED inheritance strategy and setting spring.jpa.properties.hibernate.jdbc.batch_siz
  • Stored Procedure in Java Spring Boot Project returns null as Output
  • How to solve org.hibernate.MappingException which is causing due to inheriting a class
  • Clean Archtecture. Understanding of scheme
  • Processing 3 triangle not showing in Javafx 8 Window tab
  • How to specify a sequence-based generated value in Hibernate 5 via legacy mapping
  • Spring-boot application not getting auto-deployed on startup
  • How to only pass strings that the user select
  • Is there a way to SELECT using "GREATEST(field1, field2)" where field1 and field2 are aggregate sums in the sa
  • How to handle JSON objects wrapped into one JSON object with retrofit2?
  • Configure Hazelcast CPSubsystem Retries Timeout
  • how to use onBindViewHolder with multiple items in android RecyclerView
  • No ParameterResolver registered for parameter in BeforeAll method
  • Finding the path in a graph with the least casualties according to the lanchester square law
  • MongoWriteException when inserting into Mongodb with composite custom _id
  • Fetch Oracle procedure metadata with Java when multiple procedure signatures
  • Value modification of key-pair in HashMap and impact for a HashCode
  • Migration from solrj to spring-data-solr
  • How to check if you're still connected to the database with jpa
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com