variable name in constructor

[abalfazl hossein]

public class Person {
    int profit;
    double amount;
    String name;
    public person(int a, String n){
        double amount=a*0.18;
        name=n;
    }
    public void showProfit(){
        System.out.println("name;"+name+"  Account profit for one year="+amount);
    }
}
public class Main {
      public static void main(String[] args) {
      Person p=new Person(10000,"Amir");
      p.showProfit();
    }
}

This code is wrong, I know it is because amount has the same name, But I don't know what happened actually!

It shows:
name;Amir Account profit for one year=0.0

Amir shows despite same variable, But amount is 0!!
May some one explain more?

[Kemal Sokolovic]

You are declaring amount again in your constructor at line 6. This declaration hides your field, so that amount represents variable local to the constructor, and the value is never assigned to the field it should be assigned to.

Edit: Actually, that code shouldn't even compile. Constructor name does not match class name.

[Sergii Trotsenko]

delete type declaration (double) on line 6.

[Campbell Ritchie]

Sergii Trotsenko welcome to the Ranch

[Sergii Trotsenko]

Thanks. If my answer was not in "Ranch style" please let me know

[abalfazl hossein]

Sergii Trotsenko wrote:delete type declaration (double) on line 6.

It was nice point my friend. You are welcome!!Thanks all folks!!