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What components of method signature match a method call to a method declaration?

a. return type
b. access specifier
c. argument list
d. name

1 Answer

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Final answer:

The method name and argument list must match between a method call and a method declaration in programming. The return type and access specifier do not play a role in this particular matching process. The distinction is crucial especially in cases of method overloading, where the argument list determines which overloaded method is to be invoked. The correct option is c. argument list anf d. name.

Step-by-step explanation:

When you make a method call in a programming language, such as Java or C#, the components that must match up with the method declaration to correctly link the call to its corresponding method are the method's name and the argument list. The return type and the access specifier are not involved in this matching process.

The name of the method in a method call is essential for identifying which method to invoke. It's like a label that tells the program which set of instructions to execute. However, when there are multiple methods with the same name (a situation known as method overloading), the argument list (which includes the number of arguments, their types, and the order of the types) also becomes crucial for distinguishing between the different methods.

For example, consider two overloaded methods with the same name 'calculate' but different argument lists: calculate(int number) and calculate(double number, int multiplier). The method called will be selected based on the type and number of arguments passed. If a method call looks like calculate(10), the first method is chosen because the argument list matches exactly. On the other hand, a call like calculate(10.5, 3) will link to the second method due to the matching argument list.

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