ConstructorOverloadingExample.kt

class User {
  
  private val firstName: String
  private val lastName: String
  private val address: Address
  private val educations: List<Education>
  
  constructor(
    firstName: String,
    lastName: String,
    address: Address,
    educations: List<Education>
  ) {
      this.firstName = firstName
      this.lastName = lastName
      this.address = address
      this.educations = educations
  }

  constructor(
      firstName: String,
      middleName: String,
      lastName: String,
      address: Address,
      educations: List<Education>
  ) {
      this.firstName = firstName
      this.middleName = middleName
      this.lastName = lastName
      this.address = address
      this.educations = educations
  }
  constructor(
      firstName: String,
      middleName: String,
      lastName: String,
      address: Address,
      company: Company?,
      educations: List<Education>
  ) {
      this.firstName = firstName
      this.middleName = middleName
      this.lastName = lastName
      this.address = address
      this.company = company
      this.educations = educations
  }
  constructor(
      firstName: String,
      lastName: String,
      address: Address,
      contact: Contact?,
      educations: List<Education>
  ) {
      this.firstName = firstName
      this.lastName = lastName
      this.address = address
      this.contact = contact
      this.educations = educations
  }
}