java - 如何跳过同一行中插入的下一个变量？

Question

我输入了 1、2、3，然后我只想查看 1 和 3。

BufferedReader br = new BufferedReader (new FileReader("medicine.txt"));
while(line= br.readLine() != null) {

    System.out.print("line+"br.readLine()):
}

Answer 1

也许你应该用字符“,”来分隔行

while(line = br.readLine() != null) {
    String[] splittedLine = line.split(",");
    System.out.println(splittedLine[0] + "-" + splittedLine[1]);
}