does flutter completely depends on oops ? explain me also how java , kotlin , swift are they depends on oops ?

OOP Dependency in Flutter

Does Flutter depend on OOP? How do other languages compare?

Flutter & Dart - OOP-First

Dart is purely object-oriented - everything is an object:

dartCopy
int a = 5;     // int is an object
String s = ''; // String is an object
var fn = (x) => x * 2; // Function is an object

// Every class extends Object
class User {
  String name;
  User(this.name);
}

// Inheritance
class Admin extends User {
  Admin(String name) : super(name);
}

Yes, Flutter completely depends on OOP.

Comparison with Other Languages

Java

• OOP-based (similar to Dart)
• Everything is object
• Strong typing

Kotlin

• OOP-based
• Functional features
• More flexible than Java

Swift

• Protocol-oriented (not OOP-first)
• Both OOP and functional
• More flexible design patterns

JavaScript

• Prototype-based (not classical OOP)
• Functional-first
• OOP is optional

OOP in Flutter

dartCopy
// Encapsulation
class BankAccount {
  double _balance = 0;
  void deposit(double amount) => _balance += amount;
}

// Inheritance
class Employee extends Person { }

// Polymorphism
dog.speak() // Woof
cat.speak() // Meow

// Abstraction
abstract class Shape {
  void draw();
}

Verdict: Flutter MUST use OOP. It's the foundation of Dart.