Hi friends,do you know why the average exam points of each student are plus constantly itself? Please help me🙏🙏

Question

public class ac{
public static void main(String[]args){

int[][]a={{62,98},{86,53},{64,87},{94,85},{96,65},{64,76}};
int sum=0;

for(int i=0;i<a.length;i++){
int j=0;
sum+=a[i][j];

}
System.out.println("The average points of chinese exam="+ sum/a.length);

for(int i=1;i<a.length;i++){
int j=1;
sum+=a[i][j];
}
System.out.println("The average of math examt="+ sum/a.length);

int average=0;
for(int i=0;i<a.length;i++){
for(int j=0;j<=1;j++){
average+=a[i][j];}
System.out.println("The average points of " + (i+1) + "student are "+ average/2);
}
}

}

The problem come out over here👆👆👆👆👆👆👆,the last for loop of the program.

Answer 1

I have the answer.

You have average incrementing without resetting it for each student.
So, just replace the last for loops with the following:

int average=0;
for(int i=0;i<a.length;i++){
average=0; //I added in this, it is what was needed.
for(int j=0;j<=1;j++){
average+=a[i][j];}
System.out.println("The average points of " + (i+1) + "student are "+ average/2);
}

Answer 2

You are right,thank you!