What is the process of defining two or more methods with same class that have same name but different parameters declaration?

Here is an example of a typical method declaration:

public double calculateAnswer(double wingSpan, int numberOfEngines, double length, double grossTons) { //do the calculation here }

The only required elements of a method declaration are the method's return type, name, a pair of parentheses, (), and a body between braces, {}.

More generally, method declarations have six components, in order:

  1. Modifiers—such as public, private, and others you will learn about later.
  2. The return type—the data type of the value returned by the method, or void if the method does not return a value.
  3. The method name—the rules for field names apply to method names as well, but the convention is a little different.
  4. The parameter list in parenthesis—a comma-delimited list of input parameters, preceded by their data types, enclosed by parentheses, (). If there are no parameters, you must use empty parentheses.
  5. An exception list—to be discussed later.
  6. The method body, enclosed between braces—the method's code, including the declaration of local variables, goes here.

Modifiers, return types, and parameters will be discussed later in this lesson. Exceptions are discussed in a later lesson.


Definition: Two of the components of a method declaration comprise the method signature—the method's name and the parameter types.


The signature of the method declared above is:

calculateAnswer(double, int, double, double)

Naming a Method

Although a method name can be any legal identifier, code conventions restrict method names. By convention, method names should be a verb in lowercase or a multi-word name that begins with a verb in lowercase, followed by adjectives, nouns, etc. In multi-word names, the first letter of each of the second and following words should be capitalized. Here are some examples:

run runFast getBackground getFinalData compareTo setX isEmpty

Typically, a method has a unique name within its class. However, a method might have the same name as other methods due to method overloading.

Overloading Methods

The Java programming language supports overloading methods, and Java can distinguish between methods with different method signatures. This means that methods within a class can have the same name if they have different parameter lists (there are some qualifications to this that will be discussed in the lesson titled "Interfaces and Inheritance").

Suppose that you have a class that can use calligraphy to draw various types of data (strings, integers, and so on) and that contains a method for drawing each data type. It is cumbersome to use a new name for each method—for example, drawString, drawInteger, drawFloat, and so on. In the Java programming language, you can use the same name for all the drawing methods but pass a different argument list to each method. Thus, the data drawing class might declare four methods named draw, each of which has a different parameter list.

public class DataArtist { ... public void draw(String s) { ... } public void draw(int i) { ... } public void draw(double f) { ... } public void draw(int i, double f) { ... } }

Overloaded methods are differentiated by the number and the type of the arguments passed into the method. In the code sample, draw(String s) and draw(int i) are distinct and unique methods because they require different argument types.

You cannot declare more than one method with the same name and the same number and type of arguments, because the compiler cannot tell them apart.

The compiler does not consider return type when differentiating methods, so you cannot declare two methods with the same signature even if they have a different return type.


Note: Overloaded methods should be used sparingly, as they can make code much less readable.


  • RRB JE IT (CBT II) Mock Test- 3

Answers

Related The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer?

Two or more methods can have the same name as long as their parameters declaration and definitions are different, the methods are said to be overloaded and the process is called method overloading. Method overloading is used when methods are required to perform similar tasks using different input parameters.

  • What is the process of defining two or more methods with same class that have same name but different parameters declaration?
    Reply

1 Crore+ students have signed up on EduRev. Have you?

Similar Railways Doubts

  • Which is true of constructors in JAVA?

  • 1 Answer

  • Five business leaders, Bill Gates, Donald Trump, Jack Welch, Laxmi Mittal, ... more

  • 1 Answer

  • Five business leaders, Bill Gates, Donald Trump, Jack Welch, Laxmi Mittal, ... more

  • 1 Answer

  • If different properties and functions of a real-world entity are grouped or... more

  • 1 Answer

  • In which of the following oops properties, different properties and functio... more

  • 1 Answer

Question Description
The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer? for Railways 2022 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2022 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer?.

Solutions for The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.

Here you can find the meaning of The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The process of defining two or more methods within the same class that have the same name but different parameters list is _______.a)method overloadingb)method overridingc)Encapsulationd)InheritanceCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Railways tests.

Download free EduRev App

Track your progress, build streaks, highlight & save important lessons and more!

Two or more methods can have the same name as long as their parameters declaration and definitions are different, the methods are said to be overloaded and the process is called method overloading. Method overloading is used when methods are required to perform similar tasks using different input parameters.

What is the process of defining two or more methods within the same class that have the same name but different parameters declaration?

The practice of defining two or more methods within the same class that share the same name but have different parameters is called overloading methods.

What is the process of defining two or more methods within same class that have same name but different parameters declaration in Java?

If a class has multiple methods having same name but parameters of the method should be different is known as Method Overloading.

What is the process of defining same method in more than one class having same method signature?

1 Answer. Easy explanation: Function overloading is a process of defining more than one method in a class with same name differentiated by function signature i:e return type or parameters type and number.

What is it called when two methods have the same name but different parameters?

Method overloading means two or more methods have the same name but have different parameter lists: either a different number of parameters or different types of parameters.