Construstor in dart code example

Example 1: class in dart

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

Example 2: Flutter Constructor

Customer(String name, int age, String location) {
  this.name = name;
  this.age = age;
  this.location = location;
}

Customer(this.name, this.age) {
  this.name = name;
  this.age = age;
}