运行当我尝试使用 BufferedReader 将整数输入存储到数组时出现数字格式异常

Question

我正在尝试使用 BufferedReader 接收多达 100 个输入，直到输入整数 1，然后程序终止。

public static void main(String[] args) throws IOException 
{
        //Instantiating an array of size 100, the max size.

        int arrayOfInputs [] = new int[100];

        //Creating the reader. 

        System.out.println("Enter some inputs");
        BufferedReader BR = new BufferedReader (new InputStreamReader(System.in));

        //Putting the inputs into a string.

        String stringOfInputs = BR.readLine();

        //Splitting the strings

        String [] sOI = BR.readLine().split(" ");
        for (int i = 0; i < sOI.length; i++)
        {
            //parsing the split strings into integers

            if (Integer.parseInt(sOI[i]) != 0)
            {
                arrayOfInputs[i] = Integer.parseInt(sOI[i]);
                System.out.print(arrayOfInputs[i] + " ");
            }
        }
}

我不明白为什么我的程序不工作。我正在读取输入，将其存储到一个字符串中，拆分字符串，然后将拆分的部分转换为整数，然后存储到我的大小为 100 的数组中。我做错了什么？

Answer 1

I am reading the input, storing it into a string, splitting the string, and then converting the split parts into integers to then store into my array of size 100.

您正在呼叫 BufferedReader#readLine() 两次。第一行被忽略，只处理第二行。您应该使用保存第一个读取行的变量：

String stringOfInputs = BR.readLine();  // TODO rename variable to use lowercase, e.g. br

//Splitting the strings

String [] sOI = stringOfInputs.split(" ");
...

运行当我尝试使用 BufferedReader 将整数输入存储到数组时出现数字格式异常

Running into a number format exception when i'm trying to use the BufferedReader to store integer inputs into an array

java

arrays

parsing

input

bufferedreader

运行 当我尝试使用 BufferedReader 将整数输入存储到数组时出现数字格式异常

Running into a number format exception when i'm trying to use the BufferedReader to store integer inputs into an array

java

arrays

parsing

input

bufferedreader

运行当我尝试使用 BufferedReader 将整数输入存储到数组时出现数字格式异常