Declare Variables with Data Types in Dart

void main() {
	int age = 20;
	double price = 4.5;
	num score = 8.1;
	bool status = true;
	String username = "acc1";
	print("age: $age");
	print("price: $price");
	print("score: $score");
	print("status: $status");
	print("username: $username");
}  		  
age: 20
price: 4.5
score: 8.1
status: true
username: acc1