如何在哈希表的字符串值和整数键中分隔文件中的输入行？

Question

我想解析（如果可能的话）包含数字字符串（即“95”）的分区，但我可以接受任何策略来执行此操作。我的代码适用于 hashMaps

为避免冗长，输入文件中的行如下所示：

Kostas_Antetokounmpo 37


public static void main (String[] args) throws IOException {
        String path = "roster.txt";
        String row;
        Integer row1;
        HashTable_NBA<Integer,String> roster = new HashTable_NBA<>();
        BufferedReader read = new BufferedReader(new FileReader(path));

        while ((row = read.readLine()) != null){

            String[] partition = row.split(" ", 2);
            if(partition.length >= 2){
                Integer key = Integer.parseInt(partition[1]);
                String value = partition[0];
                roster.put(key, value);

            }
        }

            System.out.println(roster);


    }
}

//EDIT
//the errors are these

Exception in thread "main" java.lang.NumberFormatException: For input string: "37   "
    at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.base/java.lang.Integer.parseInt(Integer.java:652)
    at java.base/java.lang.Integer.parseInt(Integer.java:770)
    at HashTable_NBA.main(HashTable_NBA.java:161)

Answer 1

这是一个猜测，但我假设值之间可能有多个 space。然后我从拆分命令中删除 2 。那导致了问题。

        while ((row = read.readLine()) != null){

            String[] partition = row.split("\s+");
            if(partition.length >= 2){
                Integer key = Integer.parseInt(partition[1]);
                String value = partition[0];
                roster.put(key, value);

            }
        }

如何在哈希表的字符串值和整数键中分隔文件中的输入行？

How do I separate input lines in a file in string value and integer keys for Hash tables?

java

parsing

hashtable