initialize is an instance method in this class, so the def initialize is just setting up the constructor for the class. call.. is calling the class’s call method at the time the class definition is parsed. This code is equivalent to class Lol < Redstone def initialize super 2013 end end Lol.call “https://stackoverflow.com/” do |headers| … Read more
thanks to all…..the thing which i dont know was – during a function call if i want to pass an array(arr[]) as argument then i just need to pass its name(arr) as argument not the square brackets([]) along with it. Here is my new optimized error free code which has been submitted successfully. import java.util.*; … Read more
$db is not available within the function scope, you could Pass $db as an argument function func($db, $query, $params){ return $db->db_control($query, $params); } $results = func($db, $query, $params); Or function func($query, $params){ global $db; return $db->db_control($query, $params); } $result = func($query, $params); Use global to make it available within the function, there’s probably other solutions … Read more
Although this is not a Matrix class but rather a simple Vector2 class that accepts floats this class demonstrates how you can overload the operators. class Vector2 { public: union { float _f2[2]; struct { float _x; float _y; }; }; inline Vector2(); inline Vector2( float x, float y); inline Vector2( float *pfv ); // … Read more
Can main function become friend function in C++ ? Yes, it can. The friend declaration in your class A grants function main() the right of accessing the name of its non-public data members (in this case, i): friend int main(); The object obj is default-constructed, and A‘s constructor sets the value of i to 10: … Read more
Couldn’t you refactor it so that you have a generic method that takes a WebResponse? public T Deserialize<T>(WebResponse response) where T: new() // ensure that any type of T used has a parameterless constructor { string r = “”; using (StreamReader sr = new StreamReader(res.GetResponseStream())) { r = sr.ReadToEnd(); } JavaScriptSerializer js = new JavaScriptSerializer(); … Read more
Not sure, if this is what you want, but you would need to update your total within the loop to update the value in the Total Compensation column. Let’s start with the little things you should change first. The naming convention in Java is camel-case. You should change that accordingly. For example, rather than getsalesDouble … Read more
You need to pass argument to your constructor. s1 = Square(1) # will call Square.__init__(self, 1) s2 = Square(2) # will call Square.__init__(self, 2) It’s not a big problem. Update I rewrite your class: import math class Square(): def __init__(self, length): #return an instance of this class with ‘length’ as the default length. self.length = … Read more
No there is no “error in the enum class”. You have problems in the toString (see below). You probably need the following public String toString() { return “ID: “+ID + ” First Name: “+FirstName+” Last Name: ” +LastName+” Marital Status: “+ Status +” Age: “+Age; } Problems: You can’t return System.out.println(…) (it returns void, it … Read more
A simple answer is “statements are not allowed in class body”. The simplest fix for you program would be creating an instance list variable like. private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter { final SayingsHolder holder = (SayingsHolder).getApplication(); ArrayList<String> sayingsList = holder.getSayingsList(); } This is just one option. You can move this holder.getSayingsList(); to a method body … Read more
Since you said you use dll_export, the cause of corruption can be one or more of the following: The application and DLL were not compiled with the same compiler options in terms of code generation. The application and DLL are using different heaps at runtime. For the first item, you must make sure that the … Read more
C++ language has grammar for specifying classes, and the definition of a class can be shown by writing it in C++: class class_type {}; // an example of a class Unlike class types, fundamental types aren’t and cannot be defined using the C++ language and as such, it is not possible to show their definition … Read more
The idea of classes (“class=”””) and identifiers (“id=””) is part of DOM manipulation. You can put in classes and id’s in each of the tags as you desire. Normally, the rule is an independent id for each tag, and a class for each GROUP of identical tags. To make use of classes, you are required … Read more
Here is the code that u can formulate to find a letter count from a text file.i have pushed an harcoded letter ‘a’ u can change it to dynamic also. import java.io.*; import java.util.Scanner; public class CountTheNumberOfAs { public static void main(String[] args)throws IOException { String fileName = “JavaIntro.txt”; String line = “”; Scanner scanner … Read more
Not sure what you’re trying to achieve, but technically your error is here: self = kwargs.get(‘object’,self) There’s nothing magic with self, it’s just a function argument, and as such a local variable, so rebinding it within the function will only make the local name self points to another object within the function’s scope. It’s in … Read more