student value class example

student.dart

class Student implements Comparable<Student> {
   final String name;

   const Student(this.name);

   String toString() => "Student: $name";

   bool operator ==(Object other) =>
      identical(this, other) ||
      other is Student &&
          runtimeType == other.runtimeType &&
          name == other.name;

   int get hashCode => name.hashCode;

   int compareTo(Student other) => name.compareTo(other.name);
 }