Day-3 details of Class and Object

Source: Dev.to

Class

• Class is a Java keyword
• Class is a template
• Class is a logical entity
• First letter of the class name should be capital (CamelCase), e.g., SalaryAccount
• In a class name you can use the following special characters: $, &, _
• Numerical values may be used only in the middle or at the end of the class name

Syntax

class BankDetails {
    // code
}

Object

• Object represents state and behavior
• Object is a physical entity
• Objects are used to store 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.