Question 76842 in Flutter Question posted in
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How get class object keys in flutter

I created one class as Student.

class Student{
  int id;
  String name;

  Student({this.id,this.name});
}

Now I need to print key – id and name

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2

Answers


  1. 0

    Create a toJson method inside your Student class, and print out your parameters.

    class Student{
  int id;
  String name;

  Student({this.id,this.name});

  Map<String, dynamic> toJson() => {
       if(id!= null) "Id": id,
       if(name != null)  "Name": name,
      };
}

    then,

    Student exampleStudent= Student(id: '001', name: "john"); //feed values
  print(exampleStudent.toJson());
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  2. 0

    For a proper way to do that you could check my code below. This is how to override the toString().

    import 'package:flutter/foundation.dart';

@immutable
class Student{
  final int id;
  final String name;

  const Student({required this.id,required this.name});

  @override
  String toString() {
    return 'Student{id: $id, name: $name}';
  }
  
}

    Then you could print like this:

        Student student = const Student(id: 1, name: 'John');
    print(student);
    print(student.id);
    print(student.name);
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