Question

Problem 7. Stock Market For this program you are given a String that represents stock prices for a particular com- y over a period of time. For example, you may be given a String that looks like the following: String stockPrices = "1,22,30,38,44,68,49,73,52,66"; Each number in this String represents the stock price for a particular day. The first number is day 0, the second number is day 1, and so on. You can al supplied string will formatted using commas to separate daily stock prices. The individual stock prices will always be valid integers, but they many not always be the same number of digits (i.e. 1 is a valid stock price, as is 1000. Your program should work with strings of any length. The "split" method might come in handy for this problem. Your task is to analyze the supplied string and determine the following: • The highest price for the stock • The day when the highest price occurred • The lowest price for the stock • The day when the lowest price occurred Here are two sample runnings of the program: // First run Please enter stock prices: 1,22,30,38,44,68,49,73,52,66 Highest price: 73 occurred on day # 7 Lowest price: 1 occurred on day # 0 // second run 6 Please enter stock prices: stock_prices = 41,37,40,54,51,63,54,47,23,33 Highest price: 63 occurred on day # 5 8 Lowest price: 23 occurred on day # 8

Answer 1

/* The java program that prompts user to enter the price list of the stock price. Then find the lowest and highest price
* and its day on lowest and highest .Print the result of highest and lowest price of stock prices and its day * */

//StockMarket.java
import java.util.Scanner;
public class StockMarket
{
   public static void main(String[] args)
   {
       //declare variables of integer type
       int lowest;
       int lowestDay;
       int highest;
       int highestDay;
       //create a object of Scanner class
       Scanner console=new Scanner(System.in);
       System.out.printf("Please enter stock prices: ");
       String prices=console.nextLine();//raed prices as string
      
       //split prices by split method by comma as delimiter
       String priceList[]=prices.trim().split(",");
      
      
       //Assume starting value in priceList is lowest
       //and highest values of stock prices
       lowest=Integer.parseInt(priceList[0]);
       lowestDay=0;
       highest=Integer.parseInt(priceList[0]);
       highestDay=0;
      
       /*Now update the lowest and highest and its
       * days inside the for loop */
       for (int day = 1; day < priceList.length;day++)
       {
           int update_price=Integer.parseInt(priceList[day]);
           //update the lowest and lowestDay
           if(update_price<lowest)
           {
               lowest=update_price;
               lowestDay=day;
           }
           //update the highest and highest day
           if(update_price>highest)
           {
               highest=update_price;
               highestDay=day;
           }
       }
       //print the highest and lowest on day values
       System.out.println("Highest price: "+highest+" occurred on day # "+highestDay);
       System.out.println("Lowest price: "+lowest+" occurred on day # "+lowestDay);
  
   }

}

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Sample Output:

Sample run1:
Please enter stock prices: 1,22,30,38,44,49,73,52,66
Highest price: 73 occurred on day # 6
Lowest price: 1 occurred on day # 0

Sample run2:
Please enter stock prices: 41,37,40,54,51,63,54,47,23,33
Highest price: 63 occurred on day # 5
Lowest price: 23 occurred on day # 8