The int and unsigned int variables take exactly the same amount of memory and represented in the resulting assembly code in exactly the same way. Thus adding unsigned here changes nothing from the performance point of view. In general you should not worry. The loop counter is definitely not the biggest memory consuming thing in … Read more
Method should be something like this, -(void)setColor : (UIColor *)myColor{ myView.backgroundColor = myColor; someView.layer.borderColor = myColor.CGColor //etc } Call this method like, [sel setColor : [UIColor redColor]]; //or whatever color you want to set Hope this will help. 🙂 8 solved Objective C Send Color to Method [closed]
The book you are reading is crap. Avoid the book and tell others to do the same. <conio.h> is a system-specific header and not guaranteed to be available on many platforms. The result of fgetc must never be stored in a char variable. The function feof must never be used in a loop condition. The … Read more
So far, you have the right idea. I am going to assume based on your syntax, that you are using an array. Your get() method looks good, but you are missing some code from your remove() method. public int remove(int index){ //check for out-of-bounds if(index < 0 || index >= size) //assumes size is set … Read more
First of all a, e and g are variables and not necessarily strings. What you mean is probably “a”, “e” and “g”. Your question is essentially: How do I sort the values in a String[] so that numbers are sorted numerically and prioritized before letters (or words?) which are sorted alphabetically? Your question seems incomplete, … Read more
Which makes absolute sense because that class indeed does not contain that method, but as I’ve been reading should ruby search the classes parents and grandparents for the method? That’s correct, but you didn’t declare any superclasses so the superclass will be Object. Which also doesn’t have an each method. If you want an enumerable … Read more
I’d say this is fine. The intent is different. Lets try this for example: String builder sb = new StringBuilder(); sb.append(“hello”).append(“hello”); sb.delete(0,5); sb.toString(); It prints “hello”. Had you read the documentation, you’d see that the end is non-inclusive, meaning it will delete from start to end-1, hence no IndexOutOfBounds. However, try this: StringBuilder builder = … Read more
Java doesn’t support operator overloading, instead you need to add an add function: public class Money { private BigDecimal amount; private Currency currency; public Money add(Money m) { Money res = new Money(); if (!currency.equals(m.currency)) { throw new UnsupportedOperationException(); } res.currency = currency; res.amount = m.amount.add(amount); return res; } } Money result = one.add(two); 6 … Read more
This is not the idea of functions. functions are actions, they accept parameters, calculate stuff and return a value. for example this is a function that returns the average of 3 numbers: public static int avarage(int a, int b, int c) { int sum = a + b + c; int result = sum / … Read more
To show something like “fps”: public static void main(String[] args) { while (true) callMethod(); } private static long lastTime = System.currentTimeMillis(); public static void callMethod() { long now = System.currentTimeMillis(); long last = lastTime; lastTime = now; double fps = 1000 / (double)(now – last); System.out.println(fps); } You might have to add some sleeps, because … Read more
It is not possible to put generic constraint about specific constructor availabilty, so you cannot guarantee inside the method that TDal _dal = new TDal(_connectionString); is possible. I would refactor it then to provide dal externally: public List<TRule> getData<TRule>(TRule perRA, IDal<TRule> dalRA, int acao) { List<TRule> list = new List<TRule>(); try { list = dalRA.getDATA(perRA, … Read more
Answering the question in the title line: If you use java.util.Vector<E>, then it is addElement. Those would be the closest-match class and method in Java to the C++ template classes that you mentioned in your question. Docs are here: https://docs.oracle.com/javase/8/docs/api/java/util/Vector.html#addElement-E- 2 solved what is the method equivalent to push_back (C++) in java?
As the comments have suggested you need to change the return type of the function to return int and you need to return your damageDelt variable. One way to do this is declare it outside of your if statements and then return it at the end of the function. If you didn’t want to do … Read more
The class in OOP is something which describes an object. Take a real world object for example, a car. The car can have functions like accelerate_to_speed(double speed); and some members like Color color;. The methods are something the object does and the members describe the object or show possession (the car can have an engine … Read more
You can do it almost exactly as you described, you were just lacking a few bits. After some minimal fixing, your code would be: public String MapFinder() { if ((Map.Width == 8 && Map.Height==8)) { return “DefaultMap”; } else return “Something Different”; } public String MapTracker() { if( MapFinder() == “DefaultMap” ) // <- change … Read more