Having lots of parameters in a constructor

Question

Is it wrong to have a lot of parameters inside a constructor? Like 10 to 15 parameters? Because I was designing a class where a constructor will have lots of parameters, for

Answer 1

Instead of using telescoping constructor pattern, use builder pattern

public class Person {
    private final String fName;
    private final String lName;
    private final String mInitial;
    private final int age;
    private final String contactNumber;
    private final String emailAddress;

    public Person(PersonBuilder builder) {
       //insert rest of code here 
       fName = builder.fName;
       ...
    }

    public static class PersonBuilder {
        private String fName;
        private String lName;
        private String mInitial;
        private int age;
        private String contactNumber;
        private String emailAddress;
        // setter methods
        public PersonBuilder setFirstName(String name) {
             fName = name;
             return this;
        }
        ...
        // build method
        public Person build() {
            return new Person(this);
        }

    }
}

...

Person p = new PersonBuilder()
              .setFirstName("")
              // set all the setter methods
              .build();