如何将数据传递给 Platform.runLater

Question

I need to change the title of my GUI window based on the socket data received in the socket receiver thread. I want to know is there a way to pass variables like int , long etc. to Platform.runLater , in order to avoid mutex locks just for accessing an int variable. This is a sample code:

// Receiver Socket thread
int opnMode = byteBuffer.getInt();

Platform.runLater(() -> { //GUI thread
    ((Stage) Fx.Pane.getScene().getWindow()).setTitle("Operation mode " + " (" + opnMode + ")");
});

In the above code I'm using the variable opnMode without using mutex as it is being accessed by two threads.

Answer 1

Your code should work just fine as it is because your int is effectively final. Here is a discussion of this issue: https://www.baeldung.com/java-effectively-final