小编tra*_*gel的帖子

所以我正在阅读以下的两列数据txt文件:

20 0.15

30 0.10

40 0.05

50 0.20

60 0.10

70 0.10

80 0.30

我想把第二列放入一个数组({0.15,0.10,0.05,0.2,0.1,0.1,0.3}),但我不知道如何解析大于1的浮点数.我试过在扫描仪中读取文件并使用分隔符,但我不知道如何获取进行令牌的整数.请帮我.

这是我的代码供参考:

import java.io.PrintWriter;
import java.util.Scanner;
import java.io.*;

class OneStandard {
    public static void main(String[] args) throws IOException {

        Scanner input1 = new Scanner(new File("ClaimProportion.txt"));//reads in claim dataset txt file

        Scanner input2 = new Scanner(new File("ClaimProportion.txt"));

        Scanner input3 = new Scanner(new File("ClaimProportion.txt"));


        //this while loop counts the number of lines in the file
        while (input1.hasNextLine()) {
            NumClaim++;
            input1.nextLine();
        }
            System.out.println("There are "+NumClaim+" different claim sizes …