从字符串数组解析int时的ArrayIndexOutOfBound

Question

I am new to StackExchange so I will do my best at making this question as understable as possible. I am trying to take all Integers from a String Array created from a .csv file. The file looks like so,

• type,name,untiprice,quantity
• Bitem,toothpaste,1.50,2
• Fitem,eggs,2.50,1

and so on...

Everything works perfectly until I try to add the numbers to the array. The output returns a ArrayIndexOutOfBoundsException. I made the MAX_SIZE of this array = 100. The amount of integers in the text file is no more than 8. I don't understand why this is problem is happening. Are my for-loops completely wrong or is there more to the problem?

public static void loadNums()
{
    String inputFile=("/Users/user1/Desktop/list.csv");
    File file = new File(inputFile);
    Scanner scanFile = null;

    try{
        scanFile =new Scanner(file);
    }catch(NumberFormatException | FileNotFoundException exception){
        System.out.println("Error");
    }
    if (scanFile != null)
    {
        String[] numStrs = scanFile.nextLine().split(",");
        int[] num = new int[numStrs.length];
        for (int i =0; i <numStrs.length; i++)
        {
            if (i ==0)
            {
                System.out.println("Numbers");
            }
            else 
            {
                numStrs = scanFile.nextLine().split("\\d+.,\\d+");
                for (int j =0; j <numStrs.length; j++)
                {
                    num[i] = Integer.parseInt(numStrs[i]);
                }
                System.out.println(num[i]);
            }

       }
  }

Answer 1

You try to parse the second array numStrs with the first index i :

num[i] = Integer.parseInt(numStrs[i]); 

So instead to that use this, change the numStrs[i] with numStrs[j] :

num[i] = Integer.parseInt(numStrs[j]); 

Hope this can help you.