"String cannot be converted to int"

This question already has an answer here:

How do I convert a String to an int in Java? 30 answers

---

您需要将sc.nextLine转换为int

 Scanner sc = new Scanner(new File("temperatur.txt"));

      int[] temp = new int [12];
      int counter = 0;

      while (sc.hasNextLine()) {
          String line = sc.nextLine();
          temp[counter] = Integer.ParseInt(line);
          counter++;
        }

        int sum = 0;

        for(int i = 0; i < temp.length; i++) {
          sum += temp[i];

    }

    double snitt = (sum / temp.length);

       System.out.println("The average temperature is " + snitt);
  }
}

---

Scanner::nextLine returns a String. In Java you can't cast a String to an int like you do implicitly.

try

temp[counter] = Integer.parseInt(sc.nextLine());

---

Your sc.nextLine() returns String

https://www.tutorialspoint.com/java/util/scanner_nextline.htm

链接地址: http://www.djcxy.com/p/20918.html

上一篇: 如何将InputStream转换为int

下一篇: “字符串不能转换为int”