Program to define a class Item containing code and price. Accept this data for five object using array of objects. Display code, price in tabular form and also, display total price of all items

This program demonstrates you the array of objects. Array of object is the collection of objects of the same class. The given syntax will define an array of reference therefore assign object to individual reference in the array to declare the array of object. The syntax to define array of object is:

<class-name>  <array-name> [size];

For example, the following statement will define an array of object having size 6 references to the class Box.

Box  b[6];

The above statement just declare array of objects. For creating an array of objects (allocating memory) you have to write down the following statements

for (int i=0; i<6; i++) {
 b[i]  = new  Box( );
 // Assigning object to individual reference in the array.
}

You can access the members of particular object by using membership operator like:

b[i].length = 10;
b[i].width = 20;
b[i].height = 30;

PROGRAM

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Item {

  String code;
  int price;
  
  Item(String c,int p) {
    
    code = c;
    price = p;
  }
  
  public static void main(String args[])throws IOException
  {
    Item[] I = new Item[5];
    String a;
    int b,total_cost=0;
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    
    for(int i=0;i<5;i++) {
      
      System.out.print("Enter code  for item"+(i+1)+" : ");
      a = br.readLine();
      System.out.print("Enter price for item"+(i+1)+" : ");
      b = Integer.parseInt(br.readLine());
      I[i] = new Item(a,b);
    }
    
    System.out.println("Item Code Item Price");
    System.out.println("--------- ----------");
    for(int i=0;i<5;i++)
    {
      System.out.print("\t"+I[i].code);
      System.out.println("\t\t"+I[i].price);
      total_cost = total_cost + I[i].price;
    }
    System.out.print("Total Price = "+total_cost);
  }
}

OUTPUT

C:\>javac Item.java
C:\>java Item
Enter code  for item1 : 101
Enter price for item1 : 54
Enter code  for item2 : 102
6Enter price for item2 : 4
Enter code  for item3 : 106
Enter price for item3 : 75
Enter code  for item4 : 103
Enter price for item4 : 45
Enter code  for item5 : 105
Enter price for item5 : 95
Item Code Item Price
--------- ----------
   101         54
   102         40
   106         75
   103         45
   105         95
Total Price = 309