Question

The Springfork Amateur Golf Club has a tournament every weekend. The club president has asked you to design two programs in java

1) A program that will read each player's name and golf score as keyboard input, and then save these as records in a file named golf.txt (each record will have a field for the player's name and a field for the player's score, separated by a comma)

Enter a player's name:
Arnold Palmer
Enter the player's score
74
Do you want to enter another record?
Enter y for yes or anything else for no:
y
... 


Store the data as comma separated records.  For example:

Arnold Palmer,74
Tiger Woods,69
Sam Snead,89
Micky Mouse,113

NOTE: On a windows machine, the file may be read with notepad.  Other operating systems will have similar text editors to check the result.  
  

2) A program that reads the records from the golf.txt file and displays them.

Quick and dirty table without a header

Example Output:

Player Name: Arnold Palmer Score: 74
Player Name: Tiger Woods Score: 69
Player Name: Sam Snead Score: 89
Player Name: Micky Mouse Score: 113

Answer 1

Solution for Question 1

import java.util.*;
import java.io.FileWriter; // Import the FileWriter class
import java.io.IOException; // Import the IOException class to handle errors
public class Main
{
public static void main(String[] args) {
Scanner obj = new Scanner(System.in);
char choice; // to hold 'y' or 'n'
   // try catch for caught error
try {
       // creating object from FileWriter

FileWriter myWriter = new FileWriter("golf.txt",true);
do{
// calling namescore function to save user name and score into the file
myWriter.write(nameScore()+"\n");// adding with new line
   // promting user for yes or no
System.out.println("Do you want to enter another record?\nEnter y for yes or anything else for no:");
   // taking choice from user
choice = obj.next().charAt(0);
}
while ((choice == 'y') || (choice == 'Y'));
   // closing file
myWriter.close();
System.out.println("Successfully wrote to the file.");
} catch (IOException e) {
System.out.println("Error: "+e);
e.printStackTrace();
}
}
// method to take name and socre as input from user
public static String nameScore(){
Scanner obj = new Scanner(System.in);
System.out.println("Enter a player's name: ");
String name=obj.nextLine();
System.out.println("Enter the player's score: ");
int score = obj.nextInt();
String str=name+","+score;
   // return string
return str;
  
}
}

Question 2 Solution :

import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;

public class Main
{
public static void main(String[] args) throws IOException
{
  
  
FileReader frObj = new FileReader("golf.txt");
Scanner inFile = new Scanner(frObj);
  
  
// Read till end of file
while (inFile.hasNext())
{
// reading every line
String line = inFile.next();
// deviding line as words using delemeter comma(,) using split method and saving into string Array
String[] arrOfStr = line.split(",", 2);
// displaying name and score
System.out.print("Player Name: " + arrOfStr[0]);
System.out.print(" Score: " + arrOfStr[1]);
System.out.println();
}

inFile.close();
  
}
}

program Screen shot