a small method

[senca]

hey,
I've written a method that needs to return an object "Wagon".
The method needs to pick out the wagon with the biggest amount of weight and return this wagon.
But the problem is that its saying that "kar" is already defined.
I know I defined it in the beginning of the method but each time when I run through the forloop and there is a bigger amount af wait in the wagon "i", I want kar to be this wagon so that in the end the wagon with the most weight is going to be returned.

This is the code:

public Wagon zwaarsteWagon(){
    Wagon kar = new Wagon();
    double gewicht= 0.0;
    for(int i=0; i<=getAantalWagons(); i++)
        if(wagons[i] != null){
            if(wagons[i].getGewichtGoederen()>gewicht){
                Wagon kar = wagons[i];
                gewicht = wagons[i].getGewichtGoederen();
                gewicht = wagons[i].getGewichtGoederen();}}
                
    return kar;}

[PhHein]

public Wagon zwaarsteWagon(){
    Wagon kar = new Wagon();
    double gewicht= 0.0;
    for(int i=0; i<=getAantalWagons(); i++)
        if(wagons[i] != null){
            if(wagons[i].getGewichtGoederen()>gewicht){
                kar = wagons[i];        //             <----------- just assign
                gewicht = wagons[i].getGewichtGoederen();
                gewicht = wagons[i].getGewichtGoederen();}}
                
    return kar;}

[Eranga]

That's because of these two lines.

public Wagon zwaarsteWagon(){
    Wagon kar = new Wagon();
    ......
    for(......)
        if(....){
            if(...){
                Wagon kar = wagons[i];
                ....
                .......}}
                
    return kar;}

You cannot use the same variable name in the same scope of it. It's a fundamental thing actually.