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Replied To a Post in Java Socket Programming
It looks like `AirplaneDetails` is an inner class of `airtrafficcontrol` (?), so you will need the whole `airtrafficcontrol` class on both machines. -
Replied To a Post in Thoughts on MIGLayout
Never used it myself. GridBagLayout does everything I need, and I have a strong dislike of using third-party anythings unless I have to. -
Replied To a Post in Histogram help.
FYI: That little pattern on lines13-17 is so common that Java 8 Map has a new `getOrDefault` method to make it simpler. values.put(i, values.getOrDefault(i, 0) +1); -
Gave Reputation to invisal in Recursive binary?
(I was meant to post this as comment, but because it is too long so I will make a reply) To be precise, tail recursion optimization is the process of … -
Replied To a Post in Recursive binary?
> the recursive one run in O(log(n)) and use O(log(n)) memory because you keep push high and low into the stack. Not necessarily. This is a case of *tail recursion*, … -
Replied To a Post in Recursive binary?
A binary search partitions top/bottom halfs, then does the same for the appropriate half and continues until it's found the result. That is a recursive algorithm. It would be natural … -
Replied To a Post in Java Socket Programming
You need that class (exactly the same version) on both machines. -
Replied To a Post in Java Socket Programming
Seems like the server is running on a machine that does not have that class in its classpath -
Replied To a Post in Finding the product without the (*) multiplication sign
Yeah, well done invisal. I carefully gave the OP just enough hint so he could benfit from working it out himself, then you went ahead and posted the whole thing, … -
Replied To a Post in Finding the product without the (*) multiplication sign
2 times 3 is 2+2+2 5 times 4 is 5+5+5+5 see a pattern? see how that can be implemented with a loop? -
Replied To a Post in array is not a function
Line 9 ( ) is not the same as [ ] -
Replied To a Post in Java Reflection API
Oracle's tutorial covers this exactly. https://docs.oracle.com/javase/tutorial/reflect/member/methodInvocation.html -
Replied To a Post in Java Reflection API
Now you have the Method object you can call it by using Method's `invoke` -
Replied To a Post in plugin for web development
Have you bothered to Google, or did you think it was OK to just come here and demand that someone does it for you? -
Replied To a Post in Java Tree of File Directory
It's a standard feature of the Java API, See https://docs.oracle.com/javase/tutorial/essential/io/walk.html -
Replied To a Post in explain this random number for me
Copuld be a while or a do/while. Sometimes that's just a question of preference. Try coding both and see which gives the simplest code in your specific application. -
Replied To a Post in Printing out objects
Yup That toString() is in the Client class, but its an instance of one of the other classes that's being printed. You need an appropriate toString() method in each and … -
Replied To a Post in Printing out objects
That method lookd good Where did you put it? Where is the code that tries to print and gives the wrong output? -
Replied To a Post in Printing out objects
It will work if you override toString correctly. Check that tyour method signature is correct, ie @Override public String toString() { return <some String expression>; } -
Replied To a Post in Value from getter returns null
`RegistrationDetails registrationDetails = new RegistrationDetails();` that version is almost certainly a mistake. The name is presumably mandatory. What use is a registration without a name? So in your Client class … -
Replied To a Post in Value from getter returns null
` RegistrationDetails registrationDetails = new RegistrationDetails(name);` creates a new instance, and initialises the `name` field, but ` RegistrationDetails registrationDetails = new RegistrationDetails();` creates a new instance and leaves the name … -
Replied To a Post in upload .java files to posts
I don't know. PM Dani, she wrote it. -
Replied To a Post in upload .java files to posts
You can just paste the code in Code tags as part of your post. Experience shows that most people won't bother/dare to open a file attachment anyway. -
Replied To a Post in Pig Game: Dice Rolld
Have a look at Java's `exclusive OR `operator - it's just what you need. -
Replied To a Post in Keyboard GUI
Insets work well, but the whole set minimum/maximum/preferred size, along with setSize itself is a nightmare. Different layout managers respect or ignore any or all of those depending on the … -
Replied To a Post in pls i need help in creating a traffic control system
OK Get a grip. Ask one sensible question, and show some effort if you want help. -
Replied To a Post in Keyboard GUI
Key released - the value in your theChar is useless if you get a sequence like the one in my last post. The code at the end of your post … -
Replied To a Post in Keyboard GUI
That code won't handle modifier keys (shift etc) correctly, and there's no quick fix for that. The only sensible way to get the correct character displayed is to use the … -
Replied To a Post in Keyboard GUI
I think you mean `setFocusable`, not `isFocusable` Your proposed solution is almost OK except you missed the whole point about key pressed vs key typed for the char that you … -
Replied To a Post in Java Coding HELP. Object-Oriented
OK Bobby. You posted an entire project requirement doc (I hope you own the copyright to that!). Why? What response do you expect? -
Replied To a Post in Keyboard GUI
I think I may have said right a the beginning - Swing keyboard handing is surprisingly hard, mostly because you need to know where the keyboard focus will be, (because … -
Replied To a Post in Java: Basics
DaniWeb Member Rules (which you agreed to when you signed up) include: "Do provide evidence of having done some work yourself if posting questions from school or work assignments" http://www.daniweb.com/community/rules … -
Replied To a Post in Keyboard GUI
The pressed and released events give you a VK wich is a reference to a physical key on the keyboard. You can use those (via getKeyCode, not extended key code) … -
Replied To a Post in Adding Multiple BufferedImages to one BufferedImage (Optimization)
IF you really do have a lot of drawing that is repeated without being changed and if that is consuming a significant amout of resources, then yes, there MAY be … -
Replied To a Post in assign method to variable
First, some notes on your question: You can't assign a method to an ordinary variable; you assign the result of calling that ethod. You can't call variables, just methods. The … -
Replied To a Post in Keyboard GUI
pack() before making visible to avoid a flickery repaint. You are confusing parent and child layouts. Every container has a layout that controls how its contents are layed out, but … -
Replied To a Post in Keyboard GUI
Your keys panel has a border layout, so you are adding all the rows in the same place, but you want the rows inside it stacked vertically. I can't see … -
Replied To a Post in random question
Line 77 you generate one random number "number" Then you ask the user about two completely different numbers "num1" and "num2" that you have not generated. -
Replied To a Post in random question
You would be very disappointed :) -
Replied To a Post in random question
So all you need is to generate random ints in the range 2-12? Create a Random and call its nextInt method as often as needed. nextInt(n) generates a number between … -
Replied To a Post in switch case
He's right. Think about it. What is the result of` 5/100 `in integer arithmetic? -
Replied To a Post in Suggestion in Multi Line Text Box
Which language? -
Replied To a Post in random question
Not crazy, but I have no idea what you are talking about -
Replied To a Post in need help with java program for a course
If you tage your topic "Java" then it will be seen by many more Java experts who can help you. -
Replied To a Post in random question
? -
Replied To a Post in Keyboard GUI
No need to search the map - that's what maps do - lookup values by their keys. You can just get the button directly from the map given the key … -
Replied To a Post in Keyboard GUI
You can't use the VK constants from another class without either fully qualifying them: `java.awt.event.KeyEvent.VK_1` or (better) by importing all the static public names from that class `import static java.awt.event.KeyEvent.*;` … -
Replied To a Post in How to attach output from the jbutton to jtext field?
Depends on what you drag and where you drop it! While you are learning I strongly advise you NOT to use D&D to create your programs. You will never learn … -
Replied To a Post in Keyboard GUI
Yes, the VK_ constants are the ones that refer to buttons on a keyboard. They're the ones you need. `mp.put(new Integer(xxx), row1.add(new JButton("~")));` You don't need the `new Integer` because … -
Replied To a Post in Places to learn gui java
Books are out of date by the time they are printed. You should be learning with current Java ie Java 8, not some old version. The best source of tutorial …
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