switch-statement

问题 I'm trying to develop an app that shows notifications when a new item is added.The user can select if he wants the notifications and the notification sound to show using two switch buttons. The app compiled without an error, there wasn't even an error on the stack trace but when I run the app on my phone and turn on the switches, the notification doesn't appear. What is wrong? import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.app.Notification; import

问题 I'm creating an enum called RiskFactor in my SimulationEngine base class. class SimulationEngine { public: enum RiskFactor { interest_rate, equities, volatility }; SimulationEngine(double horizon, Wrapper<valuationFunction>& theFunction_, RiskFactor simulatedRiskFactor); virtual void DoOnePath(double vol, double normvariate) = 0; virtual SimulationEngine* clone() const = 0; const virtual double GetHorizon(); const Wrapper<valuationFunction>& GetFunction() const; RiskFactor simulatedRiskFactor

问题 I have encountered two problems whenever this method with the switch statement was called: sometimes (yes only sometimes, not everytime) when the variable mDNumHit has a value of 1, case 2 or case 3 was run instead of case 1. when mDNumhit is 1, it runs case 1. Now, let's say dCards3 is 9, case 9 has been run but only this portion of code new Handler().postDelayed(new Runnable() { @Override public void run() { mImgDCard3.setImageResource(R.drawable.clubs9); } }, 500); was run, and this dTotal

问题 Somebody that could point me into the right direction in order to simplify the following code using switch statement? var indicators = db.Sses .GroupBy(x => x.Estado) .Select(x => new IndicatorViewModel { Count = x.Count(), IndicatorType = x.Key.ToString(), IndicatorClass = EstadoServicio.Nuevo == x.Key ? "bg-red" : (EstadoServicio.Proceso == x.Key ? "bg-yellow" : (EstadoServicio.Aprobación == x.Key ? "bg-aqua" : "bg-green")) , IconClass = EstadoServicio.Nuevo == x.Key ? "fa-bookmark-o" :

问题 Somebody that could point me into the right direction in order to simplify the following code using switch statement? var indicators = db.Sses .GroupBy(x => x.Estado) .Select(x => new IndicatorViewModel { Count = x.Count(), IndicatorType = x.Key.ToString(), IndicatorClass = EstadoServicio.Nuevo == x.Key ? "bg-red" : (EstadoServicio.Proceso == x.Key ? "bg-yellow" : (EstadoServicio.Aprobación == x.Key ? "bg-aqua" : "bg-green")) , IconClass = EstadoServicio.Nuevo == x.Key ? "fa-bookmark-o" :

问题 I have a Sudoku puzzle and I want to make it so the user can press the shift key and hold it down while they use the arrow keys to move up and down between cells. The cells that are already set are <input> tags like the rest, but they have the readonly attribute. Each cell has a class of 'puzzle_cells' and an id starting with a 'c' followed directly by the row number they are in, a '-', and then the cell number. So, the third cell down, fifth from the left would have an id of 'c3-5'. Every

问题 I have three functions called toggle1() , toggle2() , toggle3() linked to my html. I want to make a timer to call each function with a delay of 5 seconds (5seconds for testing). I wrote this code, but it doesn't work. Any tips on how to make it work? I have used function init() when the page loads function timer() { var i = 1; var delay = 5000; for (i, i = 3, i++) { switch (i) { case 1: toggle1(); delay; break; case 2: toggle2(); delay; break; case 3: toggle3(); delay; break; } } } 回答1: First

问题 I have three functions called toggle1() , toggle2() , toggle3() linked to my html. I want to make a timer to call each function with a delay of 5 seconds (5seconds for testing). I wrote this code, but it doesn't work. Any tips on how to make it work? I have used function init() when the page loads function timer() { var i = 1; var delay = 5000; for (i, i = 3, i++) { switch (i) { case 1: toggle1(); delay; break; case 2: toggle2(); delay; break; case 3: toggle3(); delay; break; } } } 回答1: First

问题 switch ($sort) { case 'abc': $order_by = 'subject ASC'; break; case 'fn': $order_by = 'u.username ASC'; break; case 'rd': $order_by = 'p.posted_on DESC'; break; default: $order_by = 'p.posted_on DESC'; $sort = 'rd'; break; } I want to modify this little piece of code slightly I'm just not quite sure how to do it. Im pretty sure I could do it with an if else if else if, but Im assuming changing this switch would be pretty simple, but then again I'm not sure. Anyway this is what Im trying to do

问题 I've got the following code: Class A { public: A::A(const char* name): _name(name) {} virtual void doSomething(); private: const char* _name; } Class B : public A { B::B(const char* name): A(name) {} void doSomething() { //do something } } So far so good, but I've experiencing an error crosses initialization of B* newB in the following code: std::vector<A*> vectorOfAs; switch (enumType) { case enum1 : B* newB = new B("foobar"); vectorOfAs.push_back(newB); break; case enum2 : C* newC = new C(