The variable dateBirth is static. This means that whenever it is changed on one person, it is changed on all of the other people as well. The last person has a date of birth of May 23, 1968, so, since it is the last time the variable is changed, that is what all of the … Read more
As already mentioned, you cannot somehow “build” some string at run time and use it as variable name. This is a compile time mechanism, and even if this was a compile time problem, it would be a bad idea. You most likely want std::vector<int> nx(someLength); std::vector<int> ny(someLenght); int value = 5; cerr << nx[value] << … Read more
You have to create an object of your class: class MyClass: def __init__(self,a=1,b=2): self.a=a self.b=b def function1(self): self.c=self.a/self.b + 5 return(self.c) print(MyClass().function1()) MyClass() creates an object that can be used to access attributes in the class. For a general instance: m = MyClass() print(m.function1()) 6 solved Why the method in some class I created, ask … Read more
The source code of Room is wrong. Basically, when you get or add something, you are creating a new room. Use the this qualifier to reference to the current room. public int getBedNumber(int i){ return this.beds.get(i).getNumber(); } public List<Bed> getList() { return this.beds; } public void add(Bed beds) { this.beds.add(beds); } 1 solved Add/get methods … Read more
I tried switching out and frame in and using frame.copyTo(out, mask) instead of Core.bitwise_and(frame, mask, out) It worked!! Here is my final code: // frame is input, out is output Scalar minValues = new Scalar(RFrom, GFrom, BFrom); Scalar maxValues = new Scalar(RTo, GTo, BTo); Mat mask = new Mat(); Core.inRange(frame, minValues, maxValues, mask); frame.copyTo(out, mask); … Read more
What you suggest actually works as is: >>> x=1 >>> eval(input()) print(x) 1 Another method you can have a look at is the exec method (and above that is a detailed description for eval). Depending on what you are going for this might be a bad idea though. Have a look at the local and … Read more
You could always use regex to match e.g allowed words [a-zA-Z] and digits \d or [0-9] to match e-mail adresses with at least one digit and one character as such: ([a-zA-Z]+\d.+) which only matches [email protected] because it fulfils the criteria. Or to go further, use word boundaries to demand @ and ., such as: ([a-zA-Z]+\d+\b@.+\b.+) … Read more
The reason showmailingPopUp isn’t working with onclick is because it cannot find it. It should either be defined before in a script tag or in JavaScript binding with an event listener. Here is a solution using JavaScript (adding an event listener to an element so the function will call correctly): function showMailingPopUp() { require( [“mojo/signup-forms/Loader”], … Read more
The problem is that you’re trying to cout a for loop: cout << “$200 – $299\t\t” << counter[1] << “\t\t” << for(i = 0; i < counter[1]; i++){ cout << “*”; }; …but it’s not possible to do that. Instead, break the output down – single strings can be output using cout << “something”;, and … Read more
JSONArray json = new JSONArray(result); First calculate the length of the array! int len=json.length(); String[] str=new String[len]; for(int i=0;i<len;i++) { str[i]=json.get(i).toString(); } First add a spinner to your activity Spinner s=(Spinner)findViewById(R.id.Spinner); ArrayAdapter adapter=new ArrayAdapter(this,android.R.layout.simple_spinner_item,str); s.setAdapter(adapter); solved Receive json in android
Introduction Index slice within Main func when using setGrade() is a common problem encountered when working with arrays in programming. It can be solved by using a combination of indexing and slicing techniques. Indexing is used to access individual elements of an array, while slicing is used to access a range of elements. By combining … Read more
Here: window.onunload = function() { window.clearInterval(poll); } <——– solved Where is there a missing semicolon?
Introduction The Collections.shuffle function is a powerful tool in Java that allows you to randomly rearrange the elements of a collection. This can be useful for a variety of tasks, such as shuffling a deck of cards, randomly selecting elements from a list, or randomly generating numbers. The Collections.shuffle function is easy to use and … Read more
require(‘isomorphic-fetch’); let items = []; fetch(“https://www.googleapis.com/books/v1/volumes?q=isbn:0747532699”) .then(function(res) { return res.json(); }) .then(function (result) { items = result.items; console.log(items); }), function (error) { console.log(error); } 1 solved Rewrite code from Arrow Function to non arrow function
int countUniVals(node* head, bool* unival) { if (!node) { *unival = true; return 0; } bool uniL,uniR; int sum = countUniVals(head->l, &uniL) + countUniVals(head->r, &uniR); if (uniL && uniR && (!head->l || head->l->val == head->val) && (!head->r || head->r->val == head->val)) { sum++; *unival = true; } return sum; } 0 solved Counting the number … Read more