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){
//..initializeString 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