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Functional decomposition

Decomposing switch cases in Java

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In Java programming, how would you use the functional decomposition principle when handling multiple tasks, especially when performing complex operations under each case in the 'switch statement'? Consider the following block of code:

public static void main(String[] args) {
    switch (args[0]) {
        case "task1":
            // complex operation 1
            break;
        case "task2":
            // complex operation 2
            break;
        case "task3":
            // complex operation 3
            break;
        default:
            // code for default case
    }
}

Select one option from the list

Write separate methods for each complex operation, but call these methods outside the 'switch statement' after task identification.

Declare separate methods for each case condition, each handling the corresponding complex operation, and call these methods inside the 'switch statement'.

No need to modify anything, the block of code as is follows the principle of functional decomposition.

Encapsulate the entire 'switch statement' within a single method and call this method from the main function.

Combine all complex operations into a single method and call this method in each case of the 'switch statement'.

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