Answer :
Answer:
hope this helps,do consider giving brainliest.
Explanation:
import java.io.*;
import java.util.*;
class Invoice{
private int itemNumber;
private String name;
private int quantity;
private double price;
private double totalCost;
public Invoice(int i,String n,int q, double p){
itemNumber = i;
name = n;
quantity = q;
price = p;
totalCost = 0;
}
public void setItemNumber(int a){
itemNumber = a;
}
public void setName(String a){
name = a;
}
public void setQuantity(int a){
quantity = a;
totalCost = quantity * price;
}
public void setPrice(double a){
price = a;
totalCost = quantity * price;
}
public int getItemNumber(){
return itemNumber;
}
public String getName(){
return name;
}
public int getQuantity(){
return quantity;
}
public double getPrice(){
return price;
}
public void displayLine(){
System.out.println("ItemNumber:" + itemNumber);
System.out.println("Name:" + name);
System.out.println("Quantity:" + quantity);
System.out.println("Price:" + price);
System.out.println("Total cost:" + totalCost);
}
}