can't find symbol

[globo]

I don't know what what I am doing wrong here.
This code must be changed.

public class TestBuilding
{
   public static void main(String [] args)
   {
      Building school = new Building(220);  // 220 people in school
      Building starbucks = new Building(37);
      Building dentistOffice = new Building(); // default to zero


      // acceessor
      System.out.println("School: " + school.getPeople() );

      // mutator
      starbucks.setPeople(40);
      school.setPeople(221);

      System.out.println("School: " + school.getPeople());
      System.out.println("Starbucks: " + starbucks.getPeople());
      System.out.println("Dentist: " + dentistOffice.getPeople());


      // toString
      System.out.println("Print school, again, but with toString:");
      System.out.println( school.toString() );  // explicit toString
      System.out.println( school );   // implicit toString
   }
}

This is my code
I don't know what I am doing wrong I am trying to get the this to compile wit the previous code and generate this output.

 class Building  
 { 
	public static int DEFAULT_People= 0;
	
	int num;
	private String name;
	
	public Building()
	{
	
		super ();
	}
	
	public Building (String name, int amount)
	{
		this.name = name;
		setPeople(num);
	}
	public void setPeople (int amount)
	{
	
		if (num >= 0 )
		num = amount;
		else 
		num = DEFAULT_People;
	
	}
	public void more(int amount)
	{
		if (num >= 0)
			amount += num;
	}

	 public int getPeople()
   {
      return num;
   } 
	@Override
	
	public String toString()
	{
		return "School" + num;
	}

		
}

output
School: 220
School: 221
Starbucks: 40
Dentist: 0
Print school, again, but with toString:
Number of people is this building is 221
Number of people is this building is 221

[Fubarable]

Can you show the actual error message and indicate which lines cause the error?

[globo]

My code compiles fine.
But when I compile the source code / Test Building I receive this error.
TestBuilding.java:5: cannot find symbol
symbol : constructor Building(int)
location: class Building
Building school = new Building(220); // 220 people in school
^
TestBuilding.java:6: cannot find symbol
symbol : constructor Building(int)
location: class Building
Building starbucks = new Building(37);
^
2 errors

[Fubarable]

My code compiles fine.
But when I compile the source code / Test Building I receive this error.
TestBuilding.java:5: cannot find symbol
symbol : constructor Building(int)
location: class Building
Building school = new Building(220); // 220 people in school
^
TestBuilding.java:6: cannot find symbol
symbol : constructor Building(int)
location: class Building
Building starbucks = new Building(37);
^
2 errors

As is usual, the error is telling exactly what's wrong. You're calling the Building constructor and passing an int to it. Does your Building class have such a constructor? You will get better at understanding error messages with practice, so I recommend you keep looking at them closely and try to understand them.

Luck.

[globo]

So, you are saying I need a contractor in the building class?

[goldest]

So, you are saying I need a contractor in the building class?

Not a contractor, but a constructor that can take only an int.

Goldest

[globo]

I am lost here an examples would be great.

[Fubarable]

I am lost here an examples would be great.

What's confusing? You're calling new Building(220) and have no constructor that just takes one parameter, an int. So you either need to change your new Building calls and instead make them that use Building constructors that are available (either no parameter, or two parameters, one String and one int) or you need to create a new Building constructor that just takes one parameter, an int.

What about this don't you understand?

[Fortu]

You have this code:

	public Building()
	{
	
		super ();
	}
	
	public Building (String name, int amount)
	{
		this.name = name;
		setPeople(num);
	}

And you call

new Building(220);

You don't have a constructor in your Building class that only takes an int value. You have one that takes nothing, and one that takes an int and a String object.

[globo]

This is my code.
I got everything to work
except for the Dentist: 0.
It give me this error
symbol : constructor Building()
location: class Building
Building dentistOffice = new Building(); // default to zero
^
1 error

 class Building //extends TestBuilding  
 { 
	int DEFAULT_people = 0;
	
	int num;
	
	public Building(int people)
	{
		super ();
		setPeople(people);
		
		if (num >=0 )
		num = people;
		

		
	}
	
	public void setPeople (int people)
	{
	
		if (num >= 0 )
			num = people;
			else 
		num = DEFAULT_people;
	}
		
	
	public void enter (int people)
	{
		if (num >= 0)
			people += num;
	}
		
	public int getPeople()
   {
      return num;
   } 
	public String toString()
   {
      return String.format("Number of people in this building is %d", num);
   }		
}

[Fubarable]

What's the actual error message?

[globo]

TestBuilding.java:7: cannot find symbol
symbol : constructor Building()
location: class Building
Building dentistOffice = new Building(); // default to zero
^
1 error

[globo]

It looks like the same thing as before.

[Fubarable]

It looks like the same thing as before.

Please post the exact error message. It helps immensely.

[globo]

See when I compile TestBuilding because it's the one that the main.. I get this error

TestBuilding.java:7: cannot find symbol
symbol : constructor Building()
location: class Building
Building dentistOffice = new Building(); // default to zero
^
1 error

[Fubarable]

See when I compile TestBuilding because it's the one that the main.. I get this error

TestBuilding.java:7: cannot find symbol
symbol : constructor Building()
location: class Building
Building dentistOffice = new Building(); // default to zero
^
1 error

This suggests that you've changed your Building class without telling us. Tell me, did you do away with the default constructor, the one what takes no parameters?

[globo]

Look I need to call this line so it report 0.
//Building dentistOffice = new Building(); // default to zero
But it is associated with this line too:
System.out.println("Dentist: " + dentistOffice.getPeople());
based on the last coded I submitted when i comment out these two line I have this

output
School: 220
School: 221
Starbucks: 40
Print school, again, but with toString:
Number of people in this building is 221
Number of people in this building is 221

Which means I only have one error now is to get this Dentist: 0 to appear.

[Fubarable]

Please post your most recent code for the Building class.

[globo]

I did look at #10 (permalink)

[Fubarable]

I did look at #10 (permalink)

Got it. So you've gotten rid of the default constructor for Building, the one that takes no parameters. One possible obvious solution is to add back a default constructor, again one that has an empty parameter list.