Java-字符串不能转换为int[重复]

Question

我有一个12个月温度的文本文件。但是当我试图找到平均温度时，我得到的错误是“String conly be converty to int”（字符串不能转换为int

temp[counter]=sc.nextline()；

有人能说出怎么了吗？

Scanner sc = new Scanner(new File("temperatur.txt"));
int[] temp = new int [12];
int counter = 0;
while (sc.hasNextLine()) {
   temp[counter] = sc.nextLine();
   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);

Answer 1

Scanner：：NextLine返回一个字符串。在Java中，您不能像隐式地将字符串转换为int。

试试看

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

Answer 2

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);
  }
}