DART

class in dart

class class_name {  
	//rest of the code here:
}

dart class

class Car {  
   // field 
   String engine = "E1001";  
   
   // function 
   void disp() { 
      print(engine); 
   } 
}

dart class and object

// Class Declaration 
class AClass {}

void main() {
  // Object creation
  var a = AClass();

  // Access Object property
  print(a.hashCode);
  print(a.runtimeType);
  
  // Access String Object method
  print("vel".toUpperCase());

  // Access int property
  print(2.isNegative);
  print(2.runtimeType);
  
}

dart class with

Mixins are a way of reusing a class’s code in multiple class hierarchies.

To use a mixin, use the with keyword followed by one or more mixin names. The following example shows two classes that use mixins:

class MyClass with MyMixin {
  // ···
}

To implement a mixin, create a class that extends Object and declares no constructors. 
Unless you want your mixin to be usable as a regular class, use the mixin keyword instead of class. 
For example:

mixin MyMixin {
  // ···
}

class in dart

class class_name {  
	//rest of the code here:
}

dart class

class Car {  
   // field 
   String engine = "E1001";  
   
   // function 
   void disp() { 
      print(engine); 
   } 
}

dart class and object

// Class Declaration 
class AClass {}

void main() {
  // Object creation
  var a = AClass();

  // Access Object property
  print(a.hashCode);
  print(a.runtimeType);
  
  // Access String Object method
  print("vel".toUpperCase());

  // Access int property
  print(2.isNegative);
  print(2.runtimeType);
  
}

dart class with

Mixins are a way of reusing a class’s code in multiple class hierarchies.

To use a mixin, use the with keyword followed by one or more mixin names. The following example shows two classes that use mixins:

class MyClass with MyMixin {
  // ···
}

To implement a mixin, create a class that extends Object and declares no constructors. 
Unless you want your mixin to be usable as a regular class, use the mixin keyword instead of class. 
For example:

mixin MyMixin {
  // ···
}