How to create single instance of class and use it multiple times?
548
What is an efficient way to implement a singleton pattern in Java?
50371
How to set class options that can have multiple values?
101578
How to find each instance of a class in Ruby
155637
Create object instance without invoking constructor?
125648
Use Data From Class Without A New Init
136712
How do I create an immutable Class?
40308
Is it possible to initialize a Singleton from a specific method and not when application is executed?
10086
Use bound parameter multiple times
87220
How do I programmatically compile and instantiate a Java class?
41491
Make sure only a single instance of a program is running
73217
Is there a way to instantiate a class without calling __init__?
158826
How do I instantiate a class given its string name?
110886
How to use Class in Java?
77646
How do I ensure a piece of code runs only once?
119197
How to copy a python class?
24894
Is there a way to instantiate objects from a string holding their class name?
45438
Importing two classes with same name. How to handle?