Declare Variables with Var Keyword in Dart

void main() {
  var age = 20;
  var score = 4.5;
  var status = true;
  var fullName = "ABC";
  print(age);
  print("age: " + age.toString());
  print("score: ${score}\nstatus: ${status}");
  print("full name: ${fullName}");
}
20
age: 20   
score: 4.5
status: true
full name: ABC