What's the problem in this code?

Question

Hello Everyone!
I am a newbie java learner, and during learning classes I have coded a simple program
But when I try to run it, it runs successfully but the values that it prints are 'null'
If you don't understand what I am saying try to run this code yourself:

public class Store {
//instance fields
String shopName;
String productType;
int brandCount;
char productGrade;
char profitCurrency;
double profitCount;

public Store(String name, String type, int count, char grade, char currency, double profit) {
String shopName = name;
String productType = type;
int brandCount = count;
char productGrade = grade;
char profitCurrency = currency;
double profitCount = profit;
}
public static void main(String []args) {
Store myShop = new Store("Decent", "Cosmetics", 200, 'A', '

Answer 1

If you write for example:

String shopName = name;

it creates a new local variable called "shopName" which is dropped when the constructor ends. If you want to assign a value to an existing class member, don't write the data type, just write this:

shopName = name;

Answer 2

Replace your constructor with this.

public Store(String name, String type, int count, char grade, char currency, double profit) {
this.shopName = name;
this.productType = type;
this.brandCount = count;
this.productGrade = grade;
this.profitCurrency = currency;
this.profitCount = profit;
}

Answer 3

thankyou for your answers, i have solved the problem