Question

Write a Java program that Reads baseball data in from a comma delimited file. Each line of the file contains a name followed by a list of symbols indicating the result of each at bat: 1 for single, 2 for double, 3 for triple, 4 for home run, o for out, w for walk, s for sacrifice

Statistics are computed and printed for each player.

EXTRA CREDIT (+10 points); compute each player's slugging percentage https://www.wikihow.com/Calculate-Slugging-Percentage

Be sure to avoid a division by zero error

Use the starting code I provide here. Also use the files stats.txt and stats2.txt for test files.

*CODE*

import java.util.Scanner;
import java.io.*;
import java.text.DecimalFormat;

public class BaseballStats {

public static void main (String[] args) throws IOException {

   Scanner fileScan, lineScan;
   String fileName;
   String line; //a line from the file
   String playerName;
   int numHits, numWalks, numSacrifices, numOuts;
   String action;

   Scanner scan = new Scanner (System.in);

   System.out.print ("Enter the name of the input file: ");
   fileName = scan.nextLine();
   fileScan = new Scanner (new File(fileName));

   // Read and process each line of the file
   while (fileScan.hasNext()) {
       line = fileScan.nextLine();
       lineScan = new Scanner(line);
       lineScan.useDelimiter(",");

       numHits = 0;
       numOuts = 0;
       numSacrifices = 0;
       numWalks = 0;
       playerName = lineScan.next();

       while (lineScan.hasNext()) {
           action = lineScan.next();
           if (action.equals("1") || action.equals("2") || action.equals("3")
|| action.equals("4"))
           numHits++;
           else if (action.equals("o"))
           numOuts++;
           else if (action.equals("s"))
           numSacrifices++;
// add code to handle counting number of walks
       }

       //print statistics for the player
       System.out.println ("\nStatistics for " + playerName + "... ");
       System.out.println ("Hits: " + numHits);
       System.out.println ("Outs: " + numOuts);
       System.out.println ("Walks: " + numWalks);
       System.out.println ("Sacrifices: " + numSacrifices);

// compute total number of at bats: https://www.wikihow.com/Calculate-a-Batting-Average

// create a DecimalFormat object that limits the number of decimal digits to 3

// output the batting average BUT BE CAREFUL
// consider the situation where a batter has no at bats
// for this condition output "No at bats"
// otherwise output "Batting Average: " followed by the average formatted as specified above

// EXTRA CREDIT: compute slugging percentage and output similar to batting average

}
}
}
*STAT

Willy Wonk,o,o,1,o,o,o,o,3,w,o,o,o,o,s,1,o,4
Shari Jones,1,o,o,s,s,1,o,o,o,1,o,o,o,o
Barry Bands,2,4,w,o,o,o,w,1,o,o,1,2,o,o,w,w,w,1,o,o
Sally Slugger,o,4,4,o,o,4,4,w
Missy Lots,o,o,1,o,o,w,o,o,o
Joe Jones,o,1,o,o,o,o,1,1,o,o,o,o,w,o,o,o,1,o,1,3
Larry Loop,w,1,o,o,o,1,o,o,1,s,o,o,o,1,1
Sarah Swift,o,o,o,o,1,1,w,o,o,o
Bill Bird,1,o,3,o,1,w,o,o,o,1,s,s,2,o,o,o,o,o,o
Don Daring,o,o,3,3,o,o,3,o,3,o,o,o,o,o,o,3
Jill Jet,o,s,s,1,o,o,1,1,o,o,o,1,o,1,w,o,o,1,1,o

*STAT2

Barry Bands,4,4,w,o,o,o,w,4,o,o,4,4,o,o,w,w,w,4,o,o

Answer 1

Hello Champ!

Here is the solution code in java.

Important notes :

1. Situations, that do not count as "at bats" include walks, hit-by-pitches, sacrifices, etc.

2. A batting average represents the percentage of at bats that result in hits for a particular baseball player

3. Slugging percentage represents the total number of bases a player records per at-bat. Formula for slugging percentage is: (ones*1 + twos*2 + threes*3 + fours*4)/At_bats = total_hit_score/at_bats

import java.util.Scanner;
import java.io.*;
import java.text.DecimalFormat;

public class MyClass {

public static void main (String[] args) throws IOException {

   Scanner fileScan, lineScan;
   String fileName;
   String line; //a line from the file
   String playerName;
   int numHits, numWalks, numSacrifices, numOuts, hit_score_total;
   String action;

   Scanner scan = new Scanner (System.in);

   System.out.print ("Enter the name of the input file: ");
   fileName = scan.nextLine();
   fileScan = new Scanner (new File(fileName));

   // Read and process each line of the file
   while (fileScan.hasNext()) {
       line = fileScan.nextLine();
       lineScan = new Scanner(line);
       lineScan.useDelimiter(",");

       numHits = 0;
       numOuts = 0;
       numSacrifices = 0;
       numWalks = 0;
       playerName = lineScan.next();
       hit_score_total = 0; //this variable will count the total score so far

       while (lineScan.hasNext()) {
           action = lineScan.next();
           if (action.equals("1") || action.equals("2") || action.equals("3")
|| action.equals("4")){
           numHits++;
           hit_score_total += Integer.parseInt(action);
    
           }
           else if (action.equals("o"))
           numOuts++;
           else if (action.equals("s"))
           numSacrifices++;

           //Add code here to check for walks count
           else if(action.equals("w"))
           numWalks++;
       }

       //print statistics for the player
       System.out.println ("\nStatistics for " + playerName + "... ");
       System.out.println ("Hits: " + numHits);
       System.out.println ("Outs: " + numOuts);
       System.out.println ("Walks: " + numWalks);
       System.out.println ("Sacrifices: " + numSacrifices);

       // compute total number of at bats: 
       int  at_bats = numHits + numOuts;
       //at-bats does not count sacrifices and walks.
       
   
        // create a DecimalFormat object that limits the number of decimal digits to 3
        DecimalFormat df = new DecimalFormat("0.000");

        // output the batting average BUT BE CAREFUL
        // consider the situation where a batter has no at bats
        // for this condition output "No at bats"
        // otherwise output "Batting Average: " followed by the average formatted as specified above
        if(at_bats == 0){
            System.out.println("No at bats.\nNO slugging percentage.");
        }
        else{
            float batting_avg = (float)numHits/at_bats;
            System.out.println("Batting Average:"+df.format(batting_avg)); //formating and printing the batting average.
            
            // EXTRA CREDIT: compute slugging percentage and output similar to batting average
            float slugging_percentage = (float)hit_score_total/at_bats;
            System.out.println("Slugging Percent: "+df.format(slugging_percentage));
        }
    

}
}
}

OUTPUT:

Hope it help!