SOFTWARE DESIGN
DESIGN PATTERNS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Specify the type of Objects to be created.
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Create new objects by cloning a previously created instance.
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It allows the user to add new functionality to an existing object without altering its structure.
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Limit the Creation of objects belonging to a class.
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Detailed explanation-1: -The Singleton pattern ensures that a class has only one instance and provides a global point of access to that instance. It is named after the singleton set, which is defined to be a set containing one element.
Detailed explanation-2: -In Java, Singleton is a design pattern that ensures that a class can only have one object.
Detailed explanation-3: -Singleton pattern is one of the simplest design patterns in Java. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object.
Detailed explanation-4: -The Singleton Pattern limits the number of instances of a particular object to just one. This single instance is called the singleton. Singletons are useful in situations where system-wide actions need to be coordinated from a single central place.