I assume that ‘blabla’ isn’t actually in your code but there is, in fact, something meaningful there. Remember to test for something with your if statement. if($some_condition) { for(blabla) { if($another_condition) { } // end of if statement inside the for loop } // end of for loop. } // end of if statement else{ … Read more
Here’s a great page to read … http://www.c4learn.com/data-structure/basic-stack-concept/ I can not take snippets from it – as it’s full of images and done in a good way to fully understand stacks and how they work. This will then allow you get to grips with the code you posted in your question. solved Stack data structure … Read more
As android has lots of variety in device size and resolution , you shouldn’t do whole design programmatically. you should follow design guideline . It will make your work easier though need multiple layout files. If your app is very small then try to use relative layout more to avoid design distortion . But I … Read more
Your HashMap is hm. Put the values of hm in another HashMap hm2 in which the values of hm are the keys of hm2, and the values of hm2 can be anything (e.g. the object Boolean.TRUE). Then loop through that second HashMap hm2 and print out its keys. Instead of HashMap you can also use … Read more
Download XCode 7. Apple has changed its policy regarding permissions required to build and run apps on devices. Until now, Apple required users to pay $99/year to become a member of Apple’s Developer Program in order to run code on physical iPhone and iPads. As part of the new Developer Program, this is no longer … Read more
You’ve got a couple of problems: When you call $user->login, PHP is assuming you’re accessing an object property, not the function; you need $user->login() (note the ()), which will call the method. Your example is missing a }. Demo: <?php class Connect{ var $logged; function login($username, $password){ $pass=”test”; if($pass == $password){ $this->logged = true; } … Read more
When a user to your website, say: http://example.com/ Now, the document.referrer is “” (blank) as it was not “referred” by any link. The user typed it. The document.referrer holds the link from which the page has been opened. Now, when the home page has a link like http://example.com/signup, and the user clicks it, and goes … Read more
If you can do an increment of one, just repeat that the required number of times. A better way would be: (let’s call the increment n); store the end n elements in another array; move the elements before that towards the end of the array; copy back the elements from the other array to the … Read more
How to create array without using NSArray , NSDictionary, NSSet. Want to create array ,add elements and delete elements does this make sense? [closed] solved How to create array without using NSArray , NSDictionary, NSSet. Want to create array ,add elements and delete elements does this make sense? [closed]
Singleton pattern gives you the control over the number of instances of the singleton class that can be instantiated. It is used numerous use cases. The classic Java singleton looks just as you mentioned with a very important detail – the non public constructor. The fact that the constructor is not public (either protected or … Read more
As mentioned in the comments you have to modify your code like this. res1 = input() if res1 in (“hi”, “hey”, “hello”, “sup”, “Hey Joe”): GE = (“I am Joe, Your New Personal Assintant. Nice to meet you.”) print(GE) os.system(“say ‘” + GE + “‘”) You have confused the effect of in and is; so … Read more
I’m assuming you’re saying that you only want the H1 element to be as wide as the text within it. If that’s the case, you need to set display: inline;. h1 { margin: auto auto 10px 10px; padding-left: 6px; border-bottom: 4px outset #227777; box-shadow: 0px 3px 10px black; display: inline; } <div> <h1>Heading</h1> </div> 1 … Read more
Dict* test = (Dict*)malloc(sizeof(Dict)); does not do what you think it does. malloc allocates a block of memory, but does not initialize it. So later on, when you call test->nodes.push_back, you’re calling into uninitialized memory. Undefined behavior. In your case, it crashes. The solution here is allocate test with new, which will initialize both test … Read more
When is using the “this pointer” useful in a C++ program When you need a pointer to the current object. One of the most often usages of this that I have seen is to make self assignment a noop. Foo& Foo::operator=(Foo const& rhs) { if ( this != &rhs ) { // Assign only when … Read more
askQuestion(0, null, 0, 0, null, 0); All the parms to the static method askQuestion are null/zero, including “operators”. There’s no way for “operators” to NOT be null when you get to that squirrely assignment to “operatorText”. 10 solved How to fix NullPointerException in Java?