SOFTWARE DESIGN
DESIGN PATTERNS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Command
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Mediator
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State
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Observer
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Detailed explanation-1: -Use the State pattern when you have an object that behaves differently depending on its current state, the number of states is enormous, and the state-specific code changes frequently. The pattern suggests that you extract all state-specific code into a set of distinct classes.
Detailed explanation-2: -The state pattern is used in computer programming to encapsulate varying behavior for the same object, based on its internal state. This can be a cleaner way for an object to change its behavior at runtime without resorting to conditional statements and thus improve maintainability.
Detailed explanation-3: -State design pattern is one of the behavioral design pattern. State design pattern is used when an Object change its behavior based on its internal state.
Detailed explanation-4: -Memento. The Memento pattern is useful if a certain state of an object should be saved for later usage.