Day-3 details of Class and Object

Source: Dev.to

Class

• class is a Java keyword.
• It serves as a template and a logical entity.
• The first letter of a class name should be capitalized (CamelCase), e.g., SalaryAccount.
• Allowed special characters in a class name: $, &, _.
• Numerical values may appear only in the middle or at the end of the class name.

Syntax

class BankDetails {
    // code
}

Object

• An object represents state and behavior.
• It is a physical entity used to store that state and behavior.

Syntax

BankDetails ref = new BankDetails();

• new is a Java keyword.
• When an object is created, the JVM allocates memory on the heap at runtime.