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class

How-to articles, tricks, and solutions about CLASS

Class (static) variables and methods

In Python, class variables are variables that are shared by all instances of a class.

class static python class-variables

How can I open Java .class files in a human-readable way?

Java .class files are compiled Java bytecode, which is not easily readable by humans.

java class windows applet

How do I resolve ClassNotFoundException?

A ClassNotFoundException occurs when the Java virtual machine (JVM) is unable to find a class that has been referenced in your code. This can happen for a number of reasons, including:

java class classpath classnotfoundexception

How to add property to object in PHP >= 5.3 strict mode without generating error

In PHP >= 5.3, you can use the Object::$strictProperties property to enable or disable strict property checking for an object.

php class

How to Generate Static Classes in PHP

This snippet will assist you in working with classes in PHP. Learn how to generate static classes with the help of our guidelines.

php data types class static

How to print instances of a class using print()?

To print instances of a class using the built-in print() function, you can define a __str__ method within the class.

class object python printing

How to properly set up a PDO connection

To set up a PDO connection, you will need to do the following:

php class sql MySQL pdo

How to Select the Last Element of a Specific Type

In this snippet, we want to display how you can select the last element of a specific type. For that, you need to use the CSS :last-of-type pseudo-class.

html css element class

How to use Class<T> in Java?

In Java, the Class<T> class represents the class or interface type of a class at runtime.

java class generics templates

How to Use the Scope Resolution Operator in PHP

In this snippet, you will find comprehensive information about the scope resolution. Explore the ways of using the scope resolution operator in PHP.

php class property scope resolution operator

Import a custom class in Java

To use a custom class in your Java code, you will need to import it at the beginning of your source file.

java import class

Java - get the current class name?

To get the current class name in Java, you can use the getClass() method of the Object class, which returns a Class object that represents the runtime class of the object.

java class classname

List attributes of an object

In Python, you can use the built-in function dir() to list the attributes of an object.

class python python-3.x

PHP class: Global variable as property in class

You can use the global keyword to access a global variable inside a class.

php class methods variables

Understanding Python super() with init() methods

The super() function is a way to refer to the parent class and its attributes.

inheritance class python oop super

What does "Could not find or load main class" mean?

"Could not find or load main class" is an error message shown when a Java program is run, but the main class cannot be found or loaded.

java class program-entry-point

What is a clean "pythonic" way to implement multiple constructors?

A "pythonic" way to implement multiple constructors in Python is to use the @classmethod decorator.

class python constructor

What is the difference between old style and new style classes in Python?

In Python, classes can be divided into two types: old-style and new-style.

class python oop types new-style-class

What is the purpose of the `self` parameter? Why is it needed?

The self parameter in Python is used to refer to the instance of an object within a class.

class self python oop

Why do Python classes inherit object?

In Python 3, all classes automatically inherit from the object class.

inheritance class object python oop