instance

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Add ruby class methods or instance methods dynamically

I am quite new to Ruby, so still learning. I was researching quite a bit about how to add methods dynamically, and I was successful to create instance methods, but not successful when creating class m[详细]

2023-04-04 03:40 分类：问答
How long can a Java servlet instance be expected to persist? Does the same instance serve all clients? Can there be multiple instances?

I\'m 开发者_如何学JAVAtrying to understand the Java servlet life cycle. How long can a Java servlet instance be expected to persist? How reliable is this? Does the same instance serve all clients? Or[详细]

2023-04-03 19:03 分类：问答
Creating multiples instances in Google App Engine JAVA

I am testing Google App Engine using JAVA and I want to test to run multiples instances in parallel. However, I don\'t know how to activate multiples instances.[详细]

2023-04-02 19:49 分类：问答
Access class instance from one file in another file?

I have two files, both are in the same project (part of a web scraping framework).File1 processes items that are generated by File2.In File2 I have a function that prints out some basic stats about th[详细]

2023-04-02 08:01 分类：问答
Instance set in Java?

Java defines a Set interface where contains() is defined as following: Returns true if this set contains the specified element. More[详细]

2023-04-02 04:56 分类：问答
create instance of a class in the same class's definition in python

I am trying to create a new MyClass instanc开发者_JAVA百科e in MyClass\'s definition. Why does this code fail and how can achieve it?[详细]

2023-04-01 19:37 分类：问答
In Java How do I create a new class of the same type as 'this' class? Java

I have a simple scenario. I\'d like to create a new instance of the class below. class A implements Fancy {[详细]

2023-04-01 15:32 分类：问答
What makes a jQuery object show up as an array in Chrome's Developer Tools?

I\'m wondering how it\'s possible that jQuery objects show up as an array in the console log of Developer Tools in Chrome.[详细]

2023-04-01 11:58 分类：问答
A class that only allows me to fill instances of the first type created

This is what it does: The content of the first instance of the class ( in this case mok1 ) gets filled with water. I can fill it infinitely but as soon as the first instance is created, I can only fil[详细]

2023-03-31 16:14 分类：问答
C# TargetInvocationException - (should not be there?)

I am trying to make a simple app in WPF, and i\'ve run into a bit of an anomaly. I have 2 classes: a partial class (for the WPF Window), and another public class I have set up myself. When I try to ac[详细]

2023-03-31 02:36 分类：问答