Friend.java

public class Friend { 
  
  String name; 
  String midName; 
  Date dateOfBirth; 
  
  // this class has on defautl constructor, as you have not defined any construcotr; 
 // You can create objects of type Friend like this Friend f = new Friend(); 
}

FriendWithConstructor.java

public class FriendWithConstructor {


  String name; 
  String midName; 
  Date dateOfBirth; 
  
    //construcotr 1 

  public FriendWithConstructor(String name) { 
    
  }
    //construcotr 2

  public FriendWithConstructor(String name, String midName) { 
    
  }
  
  //construcotr 3 
  public FriendWithConstructor(int someNumber, int someOther Number) { 
    
  }
  // this class has on defautl constructor, as you have not defined any construcotr; 
 // You CAN'T create objects of type Friend like this Friend f = new Friend();)
}