[Solved] How to store reference to Class’ property and access an instance’s property by that? [closed]

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[ad_1] It looks like you’re looking for Reflection Example: public class A { int integer{get; set;} } PropertyInfo prop = typeof(A).GetProperty(“integer”); A a = new A(); prop.GetValue(a, null); prop.SetValue(a, 1234, null); You still need a reference to set/get values, but this seems about what you’re wanting. 1 [ad_2] solved How to store reference to Class’ … Read more

[Solved] Get Last element from unordered_set [closed]

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[ad_1] In an unordered_set, the order of inserts does not necessarily correspond to the order that you will get when the set is iterated (hence the name “unordered”). Part of the reason why a bi-directional iterator is not supported(using a — operator) in this data structure is because being able to go backwards/forwards on an … Read more

[Solved] get all children names from object

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[ad_1] You could write a simple recursive function that will traverse the contents of your tree: var familyTree = { name: ‘Alex’, children: [ { name: ‘Ricky’, children: [ ] }, { name: ‘John’, children: [ { name: ‘Tom’, children: [ ] } ] } ] }; var traverse = function(tree) { console.log(tree.name); for (var … Read more

[Solved] Get the largest, average and smallest value [closed]

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[ad_1] Since you tagged this with C++, I would use std::vector objects mixed with the std::sort() algorithm for making it easy to find these stats. Here’s a simple example. #include <algorithm> #include <iostream> #include <vector> int main() { std::vector<float> numbers = { 1, 4, 3, 2 }; std::sort(numbers.begin(), numbers.end()); // numbers = { 1, 2, … Read more

[Solved] How to find the difference between 1st row and nth row of a dataframe based on a condition using Spark Windowing

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[ad_1] Shown here is a PySpark solution. You can use conditional aggregation with max(when…)) to get the necessary difference of ranks with the first ‘PD’ row. After getting the difference, use a when… to null out rows with negative ranks as they all occur after the first ‘PD’ row. # necessary imports w1 = Window.partitionBy(df.id).orderBy(df.svc_dt) … Read more

[Solved] Multithreading is an extension of multiprocessing?

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[ad_1] Well, yes, to some extent this is true. But it’s a simplified statement, there are significant differences. Shortly… Multiprocessing Processes are isolated from each other by OS. Each process has its own virtual memory space. They need to use IPC methods for communication with each other. If a process encounters e.g. segmentation fault, only … Read more

[Solved] How to use: Password regular expression for different validation [duplicate]

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[ad_1] Resulting from the descussion, you need one regular expression for each check to perform. At least 8 characters: ^.{8,}$ No whitespace character: ^\S*$ Both combined: ^\S{8,}$ Explanation: ^ Start of the string $ End of the string . Any character (inclusive whitespace) \S Any characters that is not whitespace {8,} previous expression 8 or … Read more

[Solved] Array Code-Why Won’t it Compile?

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[ad_1] You are trying to cin to a literal for some reason cin >> “Temp[1]”; Get rid of the quotes, use correct capitalization, and use the index variable i. cin >> temp[i]; 8 [ad_2] solved Array Code-Why Won’t it Compile?

[Solved] Which of these if the correct way to use seekg? [closed]

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[ad_1] seekg(a, b) will set the read position to b offset by a bytes. Thus: A.seekg(0, ios::beg) is equivalent to A.seekg(0). A.seekg(0, ios::end) is equivalent to A.seekg(10) if the file is 10 bytes. A.seekg(10, ios::end) is equivalent to A.seekg(20). That won’t work with a 10-byte file. The documentation on seekg would have answered your question. … Read more