methods

问题 this is sort of difficult to explain but I'll do my best. I will pose the question as it applies to one method, but know that this solution should be generic enough to apply to any possible method given. Consider the following: I have a regular old global method: void MyMethod( int a, int b ) { cout << a << " , " << b << endl; } I have another method that is to call this method. void Caller( void* method, void* data, int size ) { // convert method to some function calling convention // call

问题 package averagewithmethods; import java.util.Scanner; public class AverageWithMethods { public static void main(String[] args) { String userInput = ""; double avgVal = 0; //calculateAvg(userInput); //getUserInput(); printResults(userInput, avgVal); } public static String getUserInput() { String userInput; Scanner scnr = new Scanner(System.in); System.out.print("Please enter up to ten numbers in one line: "); userInput = scnr.nextLine(); return userInput; } public static double calculateAvg

问题 I would like to make a macro that prints out the current method's name during Log.d and Log.e output. Right now I simply type the method name within a hard-coded string, but this is obviously inefficient should the method name change in the future, as each string needs to be searched for and replaced. I am aware of using getMethodName() as indicated in this post: How to get method name in Java This one also looks promising: Debugging with helper extension method There are countless numbers of

问题 so, i have to make an application that creates results, i have completed everything, I think???? but i dont know how to get me private method outputData to output the array results from the private method getValue. This is what i have // CreateResults.java // Create poll results and output them to a file. import java.io.FileNotFoundException; import java.util.Formatter; import java.util.FormatterClosedException; import java.util.IllegalFormatException; import java.util.NoSuchElementException;

问题 I need to call a few times a function for every user who is logged in, but when the function is placed inside meteor method, this.userId becomes undefined inside function scope, here's the example: myMethod: function(){ console.log(this.userId); // this returns proper userId function innerFunction(){ console.log(this.userId); // this returns undefined }; innerFunction(); } How can I pass this.userId inside a function? Does a function has to be binded with Meteor.bindEnvironment? 回答1: You have

问题 I need to make a program in Java for a class I am in, but I need to be able to make 6 methods execute at once. I have no idea how to go about this, but here is a small bit of what I have: public static void main(String[] args) { method1(); method2(); method3(); method4(); method5(); method6(); } This just plays the methods one at a time, and I need them all at once. 回答1: Make use of multiple threads, although you should read up on concurrency if you're going to edit the same objects from

问题 STARTED - 3:00PM UPDATE 1 - 5:36PM Apply Button in the Option() class: private void cmdApplyActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: hud.setTime(btnTxtTime); hud.setTemp(btnTxtTemp); hud.setSurface(btnTxtSurface); hud.setWeather(btnTxtWeather); hud.setRadiation(btnTxtRadiation); dispose(); } This is a section of the Option() Class. public class Options extends javax.swing.JFrame { public String btnTxtTime; public String btnTxtTemp; public String

问题 Getting error with the following code: import java.util.Scanner; public class FahrenheitToCelsius{ public static void main(String[]args){ convertFToC(); } /*gets input representing fahrenheit and displays celsius equivalent*/ public static void convertFToC(){ Scanner scan = new Scanner(System.in); System.out.println("Enter Fahrenheit temperature"); double fahrenheit = scan.nextInt(); System.out.println(fahrenheit + " degrees Fahrenheit is " + fMethod(celsius) + " degrees Celsius"); } /*

问题 I have 2 classes, TournamentMember and Player where Player is derived from TournamentMember . Each of the classes has parametric constructor. TournamentMember has this constructor: TournamentMember(const char* name, std::string country, int height); Player class has this constructor: Player(int number, int goals, std::string position, std::string feet); I create an object from the Player class like this: Player soccer_player(40, 34, "goalkeeper", "right"); Each soccer player should have 7

问题 I know lots of coders use accessor methods to access some class fields which are private from other classes, but I was wondering why. And why they don't prefer protected fields witch are accessible only from classes of the same package instead of accessors? I mean if there is not a serious reason, it's just code waste. 回答1: When you only define methods to access a field, you are restricted by the methods. You cannot do something that there is not a method for. Consider this class: public