This is a example program to get what you asked for… hope it helps public static void main(String[] args) { ArrayList<String []> a = new ArrayList<>(); String b[] = {“not here”,”not here2″}; String c[] = {“not here3″,”i’m here”}; a.add(b); a.add(c); for (String[] array : a) {// This loop is used to iterate through the arraylist … Read more
Try this method: public static long getDateDiff(long timeUpdate, long timeNow, TimeUnit timeUnit) { long diffInMillies = Math.abs(timeNow – timeUpdate); return timeUnit.convert(diffInMillies, TimeUnit.MILLISECONDS); } It gives you the difference of whatever unit (days, years, …). long timestamp1 = 1500462813000; long timestamp2 = System.currentTimeMillis(); long diffInDays = getDateDiff(timestamp1, timestamp2, TimeUnit.DAYS); 2 solved Find difference between two timestamps … Read more
find() seems to be heavily used and they are very different in D and C++ implementations: int find(int x) { return ds[x] = (x == ds[x] ? x: find(ds[x])); } vs: long long find(long long node) { if(parents[node] == node)return node; else return find(parents[node]); } find() in D modifies array (looks like some kind of … Read more
An example for drawing the female symbol. First, make a Layer using UIBezierPath to draw it: import UIKit class FemaleLayer: CAShapeLayer { override var frame: CGRect { didSet{ self.draw() } } private func draw() { self.lineWidth = 20.0 self.fillColor = UIColor.clear.cgColor self.strokeColor = UIColor.black.cgColor let path = UIBezierPath() let sideLength = fmin(self.frame.width, self.frame.height) let circlesRadius … Read more
This isn’t an operator – it’s inside a string which is being logged. You can identify it by the quotes enclosing it: console.log(‘find_program_result.js -> mpU_onIdentified’); // quotes –^——————————————^ 2 solved What does “->” mean in javascript? [closed]
You are incrementing i at two places. Inside for loop for (i = 1; i <= 16; i++) and $tile.length + i++ Because of this it is incrementing two times solved Why my function incrementing plus 2?
The Birthday Paradox predicts that the probability of duplicates in random numbers is much higher than you’d think. For example, it predicts that, with a mere 23 random people, there’s a greater than 50% chance of two of them have the same birthday. By the Pigeonhole Principle, it takes 367 people for there to be … Read more
Use a dictionary better, they are exactly meant to store a value corressponding to a given object. Dictionary<string, int> dict = new Dictionary<string, int>() { {“Jack”, 1 }, {“Alice”, 2 }, {“Steven”, 3 }, {“Alex”, 4 }, {“Katrin”, 5 }}; string name = “Jack”; int value = dict[name]; // returns 1 1 solved Create enum … Read more
You should put the constructor inside the class, like this: public class Galaxy { String galaxyName; int galaxySolarSystems; int galaxyPlanets; long galaxyColonies; double galaxyLifeforms; int galaxyFleets; int galaxyStarships; public Galaxy(String name, int solarSys, int planets) { galaxyName = name; galaxySolarSystems = solarSys; galaxyPlanets = planets; galaxyColonies = 0; galaxyLifeforms = 0; galaxyFleets = 0; galaxyStarships … Read more
The line signifies a variable declaration. A declaration in C# has the following syntax: <modifiers> <data_type> <variable_name>; The first two words in the line you provided are modifiers, they are used for modifying declarations. public is an access modifier static specifies that a member belongs to the type itself instead of to a specific object. … Read more
I see some ambiguity in your question use case.. Let us take a simple use case: You want to call some one and they in turn call you back. Is there any use to it and when do you want to stop this and go ahead to get some work done?! For example following code … Read more
MPI_INIT() and MPI_FINALIZE can only be called once per program, as your error hints at. This old answer from half a year ago sketches how to get MPI to run some parts of your program in parallel: int main(int argc, char *argv[]) { MPI_Init(&argc, &argv); MPI_Comm_size(MPI_COMM_WORLD,&numprocs); MPI_Comm_rank(MPI_COMM_WORLD,&myid); if (myid == 0) { // Do the … Read more
From MSDN A constructor is a method whose name is the same as the name of its type. Its method signature includes only the method name and its parameter list; it does not include a return type. The following example shows the constructor for a class named Person. public class Person { private string last; … Read more
U made some mistakes here : You have to write your entire main code inside int main() syntax for using cin is cin >> not cin << You dont need to put char before calavg.str() because it’s already declared as stringstream Do not use using namespace std. It is a bad practice that could cause … Read more
how to provide value to parent class constructor where parent constructor have more argument than child class from static void main in c#? [closed] solved how to provide value to parent class constructor where parent constructor have more argument than child class from static void main in c#? [closed]