Help with 2D array!!!

Programming Questions

soniakxxx

in Programming Questions • 11 months ago

I am trying to get the values into a 2D array but i want it to start storing the value from an index other than 0. Below is the code but gives me " ArrayIndexOutOfBoundsException: 4" on the highlighted line....I am so tired...Please help me..

Thank you

for (int i = from; i < rows; i++) { // from is an int value where i want the rows to start from.

// split current line

String[] rows = split(ulinesA[i - from], " ");

// iterate over values

for (int j = 0; j< columns; j++) {

// parse and store the value

valArray[i][j] = float(rows[j]); // where the error is.

}

Replies(2)

amnon.owed

Re: Help with 2D array!!!

11 months ago

Apparantly your 2D array is smaller than the values of rows or columns. Since you don't include the code where you declare and initiate the 2D array nor where you set the variables for rows and columns, we can't tell where it goes wrong. You'll have to look yourself where the numbers don't add up or post all the relevant code.

quarks

Re: Help with 2D array!!!

11 months ago

Looking at your code you have declared the variable rows twice. In line 1 it is obviously an integer but later you declare it again but as a String array. This is not allowed and I am surprised you didn't get an error message - rename the String array to something unique and try again. It the error persists then there are several possibilities.