CODEWITHSUNDEEP
java
Ntavass
Ntavass

Reputation: 53

count total amount of numbers of each line in a file

I'm trying read a file and store the numbers into a 2D array. I'm using:

int lines = (int) Files.lines(Paths.get(filePath)).count();

to get the total amount of lines in the file to create my 2D array, the problem is i cant find a way to check if a line has some extra numbers.

67,1,43

13,37,61,3

31,73,7

With the example above the program will work just fine but I want to stop if the numbers of each line aren't even. Is there a specific way to count the elements of one line and compare them to the elements of the other lines?

Upvotes: 0

Views: 90

Answers (1)

H3AR7B3A7
H3AR7B3A7

Reputation: 5251

You can split the lines, check the array length and just store the maximum length somewhere.

For example:

int maxLength = 0;
Files.lines(path).forEach(line -> {
    int lineLength = line.split(",").length;
    if(lineLength > maxLength) {
        maxLength = lineLength;
    }
});

Upvotes: 1

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