Expression expected after this token

Question

Why is this popping up?

Syntax error on token "+", Expression expected after this token

for (int row = 0; row < data.length; row++) {
  for (int col = 7;;) {
            data[row][col] = [row][1] + [row][2] + [row][3] + [row][4] + [row][5] + [row][6];
    }for (int col = 8;;) {
            data[row][col] = formatter.format(([row][7] / 2650) * 100);
   }
}

It appears on every plus sign and the equals after data[row][col] =.

You have an extra leading brace and you're missing a trailing brace. — shmosel, Mar 07 '16 at 03:21
This code makes no sense. Can you explain what you're trying to do? — shmosel, Mar 07 '16 at 03:22
im trying to make a total column and a percentage column in a 2d array from a bunch of grades that are in columns indexes 1-6. these are in another for loop that cycles through the rows. — Auditor--of-Reality, Mar 07 '16 at 03:44

score 0 · Answer 1 · answered Mar 07 '16 at 04:34

The [row][col] is an access expression for the array, so you need to specify what array you want to access on these indices. Therefore every of your statements with indices should start with data

for (int row = 0; row < data.length; row++) {
    for (int col = 7;;) {
        data[row][col] = data[row][7] + data[row][2] + data[row][3] + data[row][4] + data[row][5] + data[row][6];
    }
    for (int col = 8;;) {
        data[row][col] = formatter.format((data[row][7] / 2650) * 100);
    }
}

For more information and examples see Java Tutorial on Arrays.

Also notice that you have two infinite loops, I guess the code is incomplete or the loops are redundant

for (int row = 0; row < data.length; row++) {
    data[row][7] = data[row][1] + data[row][2] + data[row][3] + data[row][4] + data[row][5] + data[row][6];
    data[row][8] = formatter.format((data[row][7] / 2650) * 100);
}

Expression expected after this token

1 Answers1