NewStats: 3,263,904 , 8,181,827 topics. Date: Sunday, 08 June 2025 at 05:19 PM 491458

Hello all, please I can't pinpoint what I am getting wrong here. Someone help please.

public class Myclass{
public static void main(String [] args){
Inventory.trophy = new Inventory();
trophy.getlastbalance();
//Inventory.goldberg = new Inventory();


trophy.name = "trophy";
trophy.initialbalance = 20;
trophy.bought = 40;
trophy.sold = 10;
System.out.println("Stock of Trophy is "+ trophy.getlastbalance());

/*goldberg.initialbalance = 10;
goldberg.bought = 24;
goldberg.sold = 10;
System.out.println("Stock of Goldberg is "+ goldberg.getlastbalance());
*/
}
}

public class Inventory{
String name = "trophy";
int initialbalance;
int bought;
int sold;


public int getlastbalance(){
return (initialbalance + bought - sold);

//System.out.println("Stock of Trophy is "+ trophy.getlastbalance());
}


}

Inventory.trophy = new Inventory();. ----wrong

Inventory trophy = new Inventory();. ----wright

toke111:
Inventory.trophy = new Inventory();. ----wrong

Inventory trophy = new Inventory();. ----wright

Why so?

just2endowed:


Why so?

Inventory ------- Class Name
trophy ----------- Object Reference Variable
new --------------- keyword for creating an object
Inventory ( ) ---- Constructor of Inventory class


SYNTAX for creating objects from a class is:

Inventory trophy = new Inventory ( )
Inventory goldberg = new Inventory ( )


After you have created the 2 Inventory objects above, you can go ahead to set values for the properties of the objects or invoke the methods in the class; you do that by using the member access operator "."


@toke111 is right

just2endowed:


Why so?

Thanks a lot.

lapo:
Hello all, please I can't pinpoint what I am getting wrong here. Someone help please.

public class Myclass{
public static void main(String [] args){
Inventory.trophy = new Inventory();
trophy.getlastbalance();
//Inventory.goldberg = new Inventory();


trophy.name = "trophy";
trophy.initialbalance = 20;
trophy.bought = 40;
trophy.sold = 10;
System.out.println("Stock of Trophy is "+ trophy.getlastbalance());

/*goldberg.initialbalance = 10;
goldberg.bought = 24;
goldberg.sold = 10;
System.out.println("Stock of Goldberg is "+ goldberg.getlastbalance());
*/
}
}

public class Inventory{
String name = "trophy";
int initialbalance;
int bought;
int sold;


public int getlastbalance(){
return (initialbalance + bought - sold);

//System.out.println("Stock of Trophy is "+ trophy.getlastbalance());
}


}

Show your imports, what the heck is trophy?
Is it an object?

toke111:
Inventory.trophy = new Inventory();. ----wrong

Inventory trophy = new Inventory();. ----wright

Thanks so, so much. Once I removed the dot separator, the code executed immediately

lapo:
Hello all, please I can't pinpoint what I am getting wrong here. Someone help please.

public class Myclass{
public static void main(String [] args){
Inventory.trophy = new Inventory();
trophy.getlastbalance();
//Inventory.goldberg = new Inventory();


trophy.name = "trophy";
trophy.initialbalance = 20;
trophy.bought = 40;
trophy.sold = 10;
System.out.println("Stock of Trophy is "+ trophy.getlastbalance());

/*goldberg.initialbalance = 10;
goldberg.bought = 24;
goldberg.sold = 10;
System.out.println("Stock of Goldberg is "+ goldberg.getlastbalance());
*/
}
}

public class Inventory{
String name = "trophy";
int initialbalance;
int bought;
int sold;


public int getlastbalance(){
return (initialbalance + bought - sold);

//System.out.println("Stock of Trophy is "+ trophy.getlastbalance());
}


}

toke111:
Inventory.trophy = new Inventory();. ----wrong

Inventory trophy = new Inventory();. ----wright

Thanks so much, boss. May God continue enrich your knowledge. Amen.

lapo:
Thanks so much, boss. May God continue enrich your knowledge. Amen.

pls what is the name of the app you are using?

lapo:

Thanks so much, boss. May God continue enrich your knowledge. Amen.

You welcome

public class Myclass{
public static void main(String [] args){
Inventory trophy = new Inventory();



trophy.name = "trophy";
trophy.initialbalance = 20;
trophy.bought = 40;
trophy.sold = 10;
System.out.println("Stock of Trophy is "+ trophy.getlastbalance());

Inventory goldberg = new Inventory();


goldberg.name = "goldberg";
goldberg.initialbalance = 10;
goldberg.bought = 24;
goldberg.sold = 10;
System.out.println("Stock of Goldberg is "+ goldberg.getlastbalance());

}
}

public class Inventory{
String name;
int initialbalance;
int bought;
int sold;





public int getlastbalance(){
return (initialbalance + bought - sold);

}


}

/*This runs perfectly now. But am looking at the possibility of using Scanner class to get s input. Please, can someone guide me?
*/

etoluw:


pls what is the name of the app you are using?

It's called Dcoder
Available on Play store.

lapo:
public class Myclass{
public static void main(String [] args){
Inventory trophy = new Inventory();



trophy.name = "trophy";
trophy.initialbalance = 20;
trophy.bought = 40;
trophy.sold = 10;
System.out.println("Stock of Trophy is "+ trophy.getlastbalance());

Inventory goldberg = new Inventory();


goldberg.name = "goldberg";
goldberg.initialbalance = 10;
goldberg.bought = 24;
goldberg.sold = 10;
System.out.println("Stock of Goldberg is "+ goldberg.getlastbalance());

}
}

public class Inventory{
String name;
int initialbalance;
int bought;
int sold;





public int getlastbalance(){
return (initialbalance + bought - sold);

}


}

/*This runs perfectly now. But am looking at the possibility of using Scanner class to get s input. Please, can someone guide me?
*/

To get input, u can use either BufferedReader or Scanner... I prefer Scanner tho

First create a Scanner object

Scanner scan = new Scanner(System.in);

To get an Integer input
scan.nextInt();

To get String input
scan.nextLine() or scan.next();

To get double input
scan.nextDouble();


And so on..

I'm still Learning Java like u but I'm focusing on app development ... I dey find money

Etinosa1234:


To get input, u can use either BufferedReader or Scanner... I prefer Scanner tho

First create a Scanner object

Scanner scan = new Scanner(System.in);

To get an Integer input
scan.nextInt();

To get String input
scan.nextLine() or scan.next();

To get double input
scan.nextDouble();


And so on..

I'm still Learning Java like u but I'm focusing on app development ... I dey find money

Thanks for your contribution. I know how scanner works really, but I want a guide on how to adopt it for the program. Thanks.