Question

IN JAVA Read the runners data file into arrays. ONE string array and ONE 2-dimension array. Each runner has 8 pieces of data, which includes name, and how much they ran for each of 7 days. Print out the raw data in columns. Below the raw data, print out the total miles ran for all of the runners.

THIS IS TXT FILE :

Keith
10
8
4
5
12
3
2
Anna
9
8
7
6
5
12
13
Derick
1
2
0
22
11
0
7
Susan
4
5
6
7
8
9
2

Answer 1

Note: Create a input.txt file in D drive with following details

Keith
10
8
4
5
12
3
2
Anna
9
8
7
6
5
12
13
Derick
1
2
0
22
11
0
7
Susan
4
5
6
7
8
9
2

Here is the screenshot

Code:

import java.io.*; //to read data from file
public class Runner
{
// counter is used for type of data. eg runner name, day1, day2...day7
// i is used for runner. eg runner1, runner2....runner7
int counter=0, i=0;
String nameList[] = new String[4];//we have 4 runner data so kept array size =4, change if required.
int day1[] = new int[4];
int day2[] = new int[4];
int day3[] = new int[4];
int day4[] = new int[4];
int day5[] = new int[4];
int day6[] = new int[4];
int day7[] = new int[4];
int total[] = new int[4];
String line;

void readFromFile()
{
try
{
// BufferedReader object to read data from file
BufferedReader read = new BufferedReader(new FileReader("d:\\input.txt"));

while ((line = read.readLine()) != null) //read data line by line
{
if(counter%8==0) //counter will keep track about type of data
nameList[i]=line;
else if(counter%8==1)
{
day1[i] = Integer.parseInt(line);//convert string to number
total[i] = total[i] + day1[i];//to count total for each runner
}
else if(counter%8==2)
{
day2[i] = Integer.parseInt(line);
total[i] = total[i] + day2[i];
}
else if(counter%8==3)
{
day3[i] = Integer.parseInt(line);
total[i] = total[i] + day3[i];
}
else if(counter%8==4)
{
day4[i] = Integer.parseInt(line);
total[i] = total[i] + day4[i];
}
else if(counter%8==5)
{
day5[i] = Integer.parseInt(line);
total[i] = total[i] + day5[i];
}
else if(counter%8==6)
{
day6[i] = Integer.parseInt(line);
total[i] = total[i] + day6[i];
}
else if(counter%8==7)
{
day7[i] = Integer.parseInt(line);
total[i] = total[i] + day7[i];
//increase i as we have collected data for ith runner, now need to collect data for (i+1)th runner
i++;
}

counter++;
}
read.close(); //close input file

}
catch(FileNotFoundException e) //exception for file not found
{
System.out.println("File not found.");
}
catch(Exception ex) //other exceptions like permission denied
{
System.out.println(ex.toString());
}
}

void showData()
{
System.out.print("\n");
for(int x=0; x<i; x++) //i is having count of total no or runner
{
System.out.print(nameList[x] + " "); //print name
}
System.out.print("\n");
for(int x=0; x<i; x++)
{
if(day1[x]>=10) //if number is more than 2 digit than just print number
System.out.print(day1[x] + " ");
else //if number is 1 digit than print number with a space
System.out.print(" " + day1[x] + " ");
}
System.out.print("\n");
for(int x=0; x<i; x++)
{
if(day2[x]>=10)
System.out.print(day2[x] + " ");
else
System.out.print(" " + day2[x] + " ");
}
System.out.print("\n");
for(int x=0; x<i; x++)
{
if(day3[x]>=10)
System.out.print(day3[x] + " ");
else
System.out.print(" " + day3[x] + " ");
}
System.out.print("\n");
for(int x=0; x<i; x++)
{
if(day4[x]>=10)
System.out.print(day4[x] + " ");
else
System.out.print(" " + day4[x] + " ");
}
System.out.print("\n");
for(int x=0; x<i; x++)
{
if(day5[x]>=10)
System.out.print(day5[x] + " ");
else
System.out.print(" " + day5[x] + " ");
}
System.out.print("\n");
for(int x=0; x<i; x++)
{
if(day6[x]>=10)
System.out.print(day6[x] + " ");
else
System.out.print(" " + day6[x] + " ");
}
System.out.print("\n");
for(int x=0; x<i; x++)
{
if(day7[x]>=10)
System.out.print(day7[x] + " ");
else
System.out.print(" " + day7[x] + " ");
}
System.out.print("\n---------------------------------------------");
System.out.print("\n");
for(int x=0; x<i; x++)//printing total
System.out.print(total[x] + " ");
System.out.print("\n---------------------------------------------");
System.out.print("\n\n");
}

public static void main(String arga[]) //main method to control the program
{
Runner run = new Runner(); //crating object of class. it will call constructor
run.readFromFile(); //call function to read data from file
run.showData(); //call function to print data
}
}

Output

Code Screenshot