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Java 2022-03-24 09:40:33
instance variable java
A variable declared inside the class is called instance variable. Value of instance variable are instance specific. public class InstanceVariableDemo { // instance variable declared inside the class and outside the method int c; public void subt... Add solution -
PHP 2022-02-23 07:35:09
__PHP_Incomplete_Class
PHP serializes its sessions using the built-in serialize and unserialize methods . serialize of PHP has the ability to serialize PHP objects (aka class instances ) and convert them to string. When you unserialize those strings, It converts them back thos... Add solution -
Python 2021-10-17 17:14:04
@classmethod vs @staticmethod vs "plain" methods
# @classmethod vs @staticmethod vs "plain" methods # What's the difference? class MyClass: def method(self): """ Instance methods need a class instance and can access the instance through `self`. ... Add solution -
Java 2021-10-15 18:48:20
static data and static methods in java
class JavaExample{ private static String str = "BeginnersBook"; //Static class static class MyNestedClass{ //non-static method public void disp() { /* If you make the str variable of outer class * non-static then you will g... Add solution -
Other 2021-10-03 04:38:04
cannot pickle
You can't pickle class instances with pickle or cPickle , but you can with dill . ... Also better than your class having a dump and load method, you might just use dump and load from dill directly... then if you are doing something complicated, you can st... Add solution -
PHP 2021-09-13 09:40:02
singleton in php
// General singleton class. class Singleton { // Hold the class instance. private static $instance = null; // The constructor is private // to prevent initiation with outer code. pri... Add solution