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Chapter 5: Problem 3

Is the following line of code a method header or a method call? calcTotal();

Short Answer

Expert verified
Answer: The given line of code is a method call.

Step by step solution

01

Analyze the structure of the code

Observe the following line of code: calcTotal(); The code consists of a keyword followed by an opening and closing parenthesis and a semicolon.
02

Identify method header and method call characteristics

A method header typically includes the following elements: 1. Access modifier (optional) 2. Return type of the method or a keyword 'void' if the method doesn't return anything 3. Method name 4. A pair of parentheses (with or without parameters) A method call is a piece of code that uses or invokes the method defined by its header. It includes: 1. Method name 2. A pair of parentheses (with or without passing arguments) 3. A semicolon (;) at the end, to indicate the end of the line of code
03

Compare the given code with the characteristics of the method header and method call

The line of code we have is: calcTotal(); It has the method name (calcTotal), parentheses, and a semicolon (;) at the end. It does not have an access modifier or a return type.
04

Conclude whether it is a method header or a method call

The given code includes elements characteristic of a method call, namely the method name, parentheses, and a semicolon (;) at the end. Meanwhile, it does not contain elements characteristic of a method header, such as the access modifier or the return type. Therefore, the given line of code is a method call.

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Most popular questions from this chapter

Suppose a method named showValues accepts two int arguments. Which of the following method headers is written correctly? a) public static void showValues () b) public static void showValues (int num1, num2) c) public static void showValues \((\text { num1 },\) num2) d) public static void showValues (int num1, int num2)

What is the difference between a void method and a value-returning method?

Write a void method that displays your full name. The method should be named myName.

Write the header for a method named lightYears. The method should return a long and have one long parameter variable: miles.

In Java, method arguments are passed by value. What does this mean?
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