Which of the following is the correct method signature for the execute method in a Command interface?

easy🧠 Conceptual Q12 of Q15

LLD - Behavioral Design Patterns — Part 1

Which of the following is the correct method signature for the execute method in a Command interface?

Avoid execute(String[] args);

Bvoid execute();

Cboolean execute(String commandName);

Dint execute(int commandId);

Step-by-Step Solution

Solution:

Step 1: Recall Command interface basics
The Command interface typically defines a simple execute() method without parameters to perform the action.
Step 2: Analyze options
The options with parameters (String[], int commandId, String commandName) or return types are not standard in Command pattern interfaces; the command object itself holds necessary data.
Final Answer:
void execute(); -> Option B
Quick Check:
Command execute method = void execute() [OK]

Quick Trick: Command execute usually has no parameters [OK]

Common Mistakes:

MISTAKES

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