Java-Advanced/JSoupValidateAndSum.java at master · janbodnar/Java-Advanced · GitHub

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import org.jsoup.Jsoup;

import org.jsoup.nodes.Document;

// the program reads data from a web page, validates it and

// calculates sum from them

// uses custom validation method

void main(String[] args) throws IOException {

String url = "https://test.webcode.me/data.txt";

Document doc = Jsoup.connect(url).get();

String content = doc.body().text();

System.out.println(content);

String[] vals = content.split(",\\s+");

int sum = 0;

for (String val : vals) {

if (isNumeric(val)) {

sum += Integer.parseInt(val);

}

System.out.println(sum);

}

boolean isNumeric(String val) {

int len = val.length();

for (int i = 0; i < len; i++) {

if (!Character.isDigit(val.charAt(i))) {

return false;

}

return true;

}

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