Q about Overload Method

[WK Lee]

Hello. It's the first time for me to post a message.
I've found a question about Overload Method:
----------------------------
public class MethodOver{
private int x,y;
private float z;
public void setVar(int a, int b, float c){
x = a;
y = b;
z = c;
}
}
Which two overload the setVar method?
A. void setVar (int a, int b, float c){x=a; y=b; z=c;}
B. public void setVar (int a, float c, int b) {setVar(a,b,c);}
C. public void setVar (int a, float c, int b){this(a,b,c);}
D. public void setVar (int a, float b){x=a;z=b;}
E. public void setVar (int ax, int by, float cz){x=ax; y=by; z=cz;}
-----------------------------
I think that the answer should be B, C, D while the suggested answer are B and D only.
I would like to ask that why C is incorrected?
Thanks for your helping.

[Anupam Sinha]

Hi WK
Well option C is correct but its implementation is wrong I guess that's why they have not included C in the correct answer set. {this(a,b,c);} this is wrong. But this no doubte a badly worded question.
[ June 09, 2003: Message edited by: Anupam Sinha ]

[Rajeshwari Natarajan]

Answer C is not valid.

C. public void setVar (int a, float c, int b){this(a,b,c);}

The above code will give compile time error.
Using the keyword *this* like in the above example is wrong. It can only be in the first line of a constructor. this(a, b, c) will try to call a constructor with 3 args of compatible data type.

[Anupam Sinha]

Hi Rajeshwari
As I said earlier that though the implementation of the method is wrong I guess you can still call it an overloaded method. I would call it an incorrectly implemented overloaded method.

[WK Lee]

Anupam & Rajeshwari, thanks for your helping...
I get it now.

[Francis Siu]

Let me edit the question
Which method(s) are overloading method for the setVar?
A. void setVar (int a, int b, float c)
B. public void setVar (int a, float c, int b)
C. public void setVar (int a, float c, int b)
D. public void setVar (int a, float b)
E. public void setVar (int ax, int by, float cz)
Welcome try to answer
Just want clear YOUR concept

[ June 10, 2003: Message edited by: siu chung man ]