Exception in thread “main” java.lang.ArrayIndexOutOfBoundsException [duplicate]

Answer 1

problem in this lines

int[]totalScores = new int[students.length];

for(int i=0; i< students.length; i++) { for(int j=1; j<4; j++) { totalScores[i]= totalScores[i]+students[i].getScore(j); } }

you allocated students.length size for the totalscore.. but u are using 4*students.length.. so arrayindex out of bounds occured. use this

int[]totalScores = new int[4*students.length];

thanks arefin

Answer 2

You have a ; after your last for, so after the for executes with no additional commands in each step, the variable i will have the value students.length which is outside the bounds of the array. Then the { ... } block following the for is executed once with that final value of i, causing the exception.

Remove that ; and it should work.