Function add of Vector doesn't work

Question

I have a class of Line and a fit constructor.

I defined:

Line l1 = new Line("A", "B");

I have a class ts, that has a member: Vector<Line> allLines = new Vector<Line>();

I want to add the line l1 into this vector..

I tried three options but it doesn't work:

ts.allLines.addElement(l1);

but I got the error:

The method addElement(Line) in the type Vector<Line> is not applicable for the arguments (Line)

ts.allLines.add(l1);

but I got:

The method add(Line) in the type Vector<Line> is not applicable for the arguments (Line)

but it doesn't work.

Your code looks ok - the problem is in the code you have not shown yet. — assylias, Jun 01 '13 at 17:38
Please show a small, *complete* example which recreates the error. — Code-Apprentice, Jun 01 '13 at 17:40

score 4 · Answer 1 · answered Jun 01 '13 at 17:36

4

Make sure your import for Line class are correct. You may have imported a wrong Line class.

answered Jun 01 '13 at 17:36

Juned Ahsan

67,789
12
98
136

thank you. my line class is found in: HW11/src/Line.java. so I have to import: HW11.src.Line? – Alon Shmiel Jun 01 '13 at 17:49

score 2 · Answer 2 · answered Jun 01 '13 at 17:38

2

Your class should look like this:

package com.example;  
import java.util.Vector;  
import com.example.Line;

public class Foo  
{  
    Vector<Line> lines = new Vector<Line>();  

    public void add(Line line)  
    {
         this.lines.add(line);
    }  
}

make sure you are importing both the correct Vector class and the correct Line class.

answered Jun 01 '13 at 17:38

Woot4Moo

23,987
16
94
151

thank you. my line class is found in: HW11/src/Line.java. so I have to import: HW11.src.Line? – Alon Shmiel Jun 01 '13 at 17:49
@AlonShmiel most likely yes. – Woot4Moo Jun 01 '13 at 19:06

score 0 · Answer 3 · edited May 23 '17 at 11:57

0

You should probably use one of the List implementations, for example ArrayList, instead of Vector. Althrough it is not marked as deprecated, it is in the library only for legacy code support and should be avoided. This question highlights several problems with the Vector class.

edited May 23 '17 at 11:57

Community

1
1

answered Jun 01 '13 at 19:51

Marcin Jedynak

3,697
2
20
19

Function add of Vector doesn't work

3 Answers3