Hey guys I am having a problem with my java program which consists of a huge score. Please solve that program for me. I would be very thankful. Here is the question :

Q)For research purposes and to assist students, the admission office of your local university wants to know how well female and male students perform in certain courses. You receive a file that contains female and male students GPAs  for certain courses. The letter code f is used for female students;m is used for male students . Every file entry consists of a letter code followed by a GPA. Each line has one entry. The number  of entries in the file is unknown. Write a program  that computes and output the average GPA for female and male students. Format your results to two decimal places.

 

Thank you in advance...

Jai Nepal

I am working on it. Will post you the solution in nnext 1 hour.

dude rn't u supposed to solve this on ur own, try solving on ur own from next time, here is the code, just create a file with following info in it

m   20

f     30

f    20

........ something like that and save it in c:\file.txt or u can rename or change the path too. 

 

import java.io.*;

public class jayNepal

{

public static void main(String[] args)

{

//..initialize

String sex="";

//..total marks form male

int mMarks=0;

//..total number of male student

int mCount=0;

//.. total marks of female

int fMarks=0;

//.. total number of female

int fCount=0;

int marks;

try {

BufferedReader in = new BufferedReader(new FileReader("c:\\file.txt"));

String str;

while ((str = in.readLine()) != null)

{

int spacePosition=str.indexOf(" ");

sex=str.substring(0, spacePosition);

marks=Integer.parseInt(str.substring(spacePosition+1));

System.out.println("sex"+ sex + " and marks " + marks);

if(sex.equals("m") || (sex.equals("M")))

{

mMarks=mMarks+marks;

mCount++;

}

else

{

fMarks=fMarks+marks;

fCount++;

}

}

System.out.println("Average male mark is " + mMarks/mCount +" Average Female Mark is " + fMarks/fCount);

in.close();

}

catch (IOException e)

{

}

}

}

I tried it too many times but cannot find out the solution.

As well as, I dont know th way to import the text file so balbahadur plz post the complete program of it.

Plz dont miss any steps coz I am a newbie in programs.

Thanks for your help.

oh , didnt seee the GPA (thought it was just marks) part so u might have to change all the marks from int to double, and also dont give space at the start of the file.

hey did u try the program i sent u ? do u even know how to run a java code? let me know if u need instruction on running the above code and 666 is the devil's code.

Plz correct it yourself and give me a final program as well as tell me the procedures to run it in  a notebook.

Sun's computer sucks!!!

ke ho mitra!! hope u r not  a computer student, ok this is what u do, and this is java so deosnt matter wheather its notebook, or desktop or linux, or windows. So, hope you have atleast run  "Hello world " program in your notebook ever.

1. Create a file with the info ur teacher asked u to enter. Save it as file.txt in c: (Hope I dont have to teach you this)

m   3.5

f     2.5

f    4.0

2. Create one file and copy paste the below code in that  and save it as jayNepal.java

import java.io.*;

public class jayNepal

{

public static void main(String[] args)

{

//..initialize

String sex="";

//..total marks of male

double mMarks=0.0;

//..total number of male student

int mCount=0;

//.. total marks of female

double fMarks=0.0;

//.. total number of female

int fCount=0;

double marks;

try {

BufferedReader in = new BufferedReader(new FileReader("c:\\file.txt"));

String str;

while ((str = in.readLine()) != null)

{

int spacePosition=str.indexOf(" ");

sex=str.substring(0, spacePosition);

marks=Double.parseDouble(str.substring(spacePosition+1));

System.out.println("sex "+ sex + " and marks " + marks);

if(sex.equals("m") || (sex.equals("M")))

{

mMarks=mMarks+marks;

mCount++;

}

else

{

fMarks=fMarks+marks;

fCount++;

}

}

System.out.println("Average male GPA is " + mMarks/mCount +" Average Female GPA is " + fMarks/fCount);

in.close();

}

catch (IOException e)

{

}

}

}

3. compile this code

javac jayNepal.java

4. run jayNepal using

java jayNepal