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A few words... you truly ought to be using a StringBuilder here, rather than a String, first of all. Secondly, the error is because the "enhanced for loop" i.e. for-each construct syntax is (roughly...

I believe what you may be looking for is a Map.


enum ContactType {
PERSONAL, BUSINESS
}
...
final Map<ContactType, Set<Contact>> contacts = new HashMap<>();
...
public void...

The culprit line is here. (PS aren't you from rune-server?)

Class<Dialogue> dialogue = (Class<Dialogue>) Class.forName(file.getName().replaceAll(".class", "").getClass().getCanonicalName());...

The reason the compiler is complaining is because you never once initialized `numberString`. I suspect you intended to initialize it with something like:

numberString = keyboard.next();
... but...

There are plenty of ways to do this. I'd advise you avoid using relics of the past like Stack in favor of using the newer Deque collection. I quote:

You can even convert a Deque into a LIFO Queue...

What kinds of individual methods? Accessors and mutators for the type? Sure, but I see no benefit over using the constructor to pass your type in.

You should consider calming down, and re-evaluate your situation. I apologize for suggesting you quit posting, but I was unsure of how to respond to your German equivalent of "fuck off". I also...

I see no reason why it shouldn't be exposed to the user, but if you must, just add a constructor parameter and seek adding a type field to the Contact class and add it to the class' constructor. That...

Why should the contact type *not* be apart of the Contact object? There's no real logical alternative... you should be seeking to maximize cohesion while minimizing coupling.

Not necessarily hidden... try reading through the relevant Java Tutorials trail.

I believe you still are unable to understand the situation. You gave an incorrect explanation which I fully understood, thus being able to point out that it was incorrect. I didn't mean any hard...

Static methods are bad? So Math.sin is bad, eh? I understand what you're trying to say, but this is clearly not enterprise scale... you appear to have to some degree a naive understanding of unit...

Just a side note - you can use Java with web development... I'd say it's a much less chaotic solution to web applications to use a Java solution (like servlets) over PHP. Take a look through here.

Really? Your approach would be to make a dedicated instance method to invoke on an object that has no real purpose? You'd manually read a token using scanner.next() and *then* parse it as an integer?...

public class Test
{
public static void main(String args[])
{
final int NUM_row = 4;
final int Num_columns=6;
int[][] numbers = new int[NUM_row][Num_columns];
Random randomNumbers =...

I don't quite know what Voodoo is on about, considering your 'algorithm' (what algorithm?) is not wrong -- I'm not sure quite what he means when he speaks of 'ignoring' what is passed in the...

read() returns a character, not a parsed integer... read() will return, in order: '1' (49), '0' (48), ' ' (32), '3' (51), ' ' (32), '4' (52), ' ' (32), '9' (57), '9' (57), ' ' (32), '-' (45), '1'...