Introduction
Basic Concepts
Methods

Methods Concept

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In object-oriented programming, methods define the actions that an object can perform. They are functions within a class that describe the behaviors or operations of the objects created from the class.

Methods are integral to how objects interact with each other and perform tasks. Let’s explore this concept using the BankAccount class example:

ㅤㅤㅤㅤㅤBankAccountㅤㅤㅤㅤㅤ
deposit(amount)
withdraw(amount)

Bank Account Example:

For instance, let’s use the BankAccount class to create two bank account objects:

ㅤㅤㅤㅤㅤaccount1ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤaccount2ㅤㅤㅤㅤㅤ
accountNumber: 123456
balance: 500
accountHolder: John Doe		accountNumber: 789012
balance: 1000
accountHolder: Jane Smith
deposit(amount)
withdraw(amount)		deposit(amount)
withdraw(amount)

Method Usage:

  • account1 can use the deposit method to add funds and the withdraw method to withdraw funds.
  • account2 has the same methods but can perform deposit and withdraw operations based on its own balance and account details.

Each object has access to the same methods defined in the class, which enables them to perform similar actions, but the outcomes of these methods depend on the object’s specific attributes and current state.

Explore the Core Principles chapter to learn more about how methods integrate with the core principles of OOP, including inheritance, polymorphism, abstraction, and encapsulation.
Attributes