No tutorial needed. The Socket.IO FAQ is pretty straightforward on this one: socket.emit(‘news’, { hello: ‘world’ }); EDIT: Folks are linking to this question when asking about how to get that socket object later. There is no need to. When a new client connects, save a reference to that socket on whatever object you’re keeping … Read more
The Tkinter text widget is remarkably powerful, but you do have to do some advanced features yourself. It doesn’t have built-in spell check or built-in buttons for bolding text, etc, but they are quite easy to implement. All the capabilities are there in the widget, you just need to know how to do it. The … Read more
My solution was to initialize a single Toast in the activity. Then changing its text on each click. Toast mToast = Toast.makeText(this, “”, Toast.LENGTH_SHORT); if (a) { mToast.setText(“This is a”); mToast.show(); } else if (b) { mToast.setText(“This is b”); mToast.show(); }
It is not java, but may be useful ./bin/kafka-run-class.sh kafka.tools.GetOffsetShell \ –broker-list <broker>:<port> \ –topic <topic-name> \ | awk -F “:” ‘{sum += $3} END {print sum}’
You’re sending an ajax request with PrimeFaces <p:commandButton>. Ajax requests have by default no form of feedback (unless PrimeFaces’ autoUpdate=”true” is been used somewhere). You should be explicitly specifying parts of the view which you’d like to update on ajax response. One way is specifying the update attribute on <p:commandButton> to point to the client … Read more
If you’re lucky enough to only support python 3.x, this really becomes a thing of beauty 🙂 raise from We can chain the exceptions using raise from. try: 1 / 0 except ZeroDivisionError as e: raise Exception(‘Smelly socks’) from e In this case, the exception your caller would catch has the line number of the … Read more
You can use FacesContext#addMessage() to add a FacesMessage to the context programmatically. FacesContext facesContext = FacesContext.getCurrentInstance(); FacesMessage facesMessage = new FacesMessage(“This is a message”); facesContext.addMessage(null, facesMessage); When you set the client ID argument with null, it will become a global message. You can display and filter them using <h:messages /> <h:messages globalOnly=”true” /> The globalOnly=”true” … Read more
You can either handle key events from a view or in general for your whole application: Handle onKey from a View: public boolean onKey(View v, int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_ENTER: /* This is a sample for handling the Enter button */ return true; } return false; } Remember to implement … Read more
Whatsapp store all messages in an encrypted database (pyCrypt) which is very easy to decipher using Python. You can fetch this database easily on Android, iPhone, Blackberry and dump it into html file. Here are complete instructions: Read, Extract WhatsApp Messages backup on Android, iPhone, Blackberry Disclaimer: I researched and wrote this extensive guide.
You can’t do that by sending messages, instead use SendInput Windows API. Call method ClickOnPoint, this is an example from form click event, so this.handle is form handle, note that these are client coordinates on window witch handle is send, you can easily change this and send screen coordinates, and in that case you don’t … Read more