adding an argrument

[toolshed]

Can someone give me some ideas on how to do something....i need to create my own add method.... num1.add(num2); i want to write my own add method....how do i get this: num1 + num2....
my add method will be more complicated than this....i just want to be pushed in right direction....
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[David Weitzman]

Java does not support operator overloading. A Java programmer can sleep well at night knowing that '+' will always be used to add two numeric primitives, concatenate Strings, or specify the sign of a numeric primitive.
Also, please change your name to one that meets that JavaRanch naming policy.
[This message has been edited by David Garland (edited August 25, 2001).]

[Josey Muney]

I want to override the default "add" method of the object class...I want to take two objects and add the arrays that are stored in them together...

foo1.add(foo2);

//that add method will call whatever the foo1 is and use its add method to add the arrays...If u have any idea, tell me or just push me in the right direction...if u understand.....dont you use the "this" keyword to help compare them or something...
[This message has been edited by Josey Muney (edited August 26, 2001).]

[jason adam]

this is used to "point" to the current instance, or object, of a class. For instance:

public class myClass
{
    private int someInt ;
    myClass( int someInt )
    {
        [B]this[/B].someInt = someInt ;
    }
}

this refers to the instance just created (since myClass() is a constructor), and says "make this instances someInt equal to the someInt argument that was passed as a parameter".

[Bindesh Vijayan]

Hi Josey,
I guess this is what you wanted

<font size=2.5>
class Num{
int[]arr;
int add(Num num2){
int sumOfTwoArrays=0;
int arrLenght=this.arr.length;
for(int i=0; i < arrLength;i++) sumOfTwoArrays+=this.arr[i];
for(int i=0; i < arrLength;i++) sumOfTwoArrays+=num2.arr[i];
return sumOfTwoArrays;
    }
}
public class NumberDemo{
public static void main(String []args){
Num n1=new Num();
Num n2=new Num();
int[]arr1={1,2,3,4};
int[]arr2={1,2,3,4};
n1.arr=arr1;
n2.arr=arr2;
System.out.println("Sum of Arrays:"+n1.add(n2));
}
}

Tell me, whether it works fine or not.Remember this could be changed according to your needs
THANKS
(edited by Cindy to format code and put blanks around < sign so it doesn't function like html)

[This message has been edited by Cindy Glass (edited August 27, 2001).]