我读过类似的主题,但没有找到任何使用这种阅读方法,所以我无法修复它。在阅读Java中的csv时删除第一行
如何在使用以下方法阅读时跳过第一行? BTW,我有同第二读取麻烦,用行之后:
File file = new File("attendance.csv");
代码:
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.List;
import java.util.Scanner;
public class ClassAttendance {
public static void main(String[] args) throws Exception {
int rowCount = 0;
int colCount = 0;
Scanner rc = new Scanner(new File("attendance.csv"));
while (rc.hasNextLine()) {
rowCount++;
rc.nextLine();
}
rc.close();
File file = new File("attendance.csv");
List<String> lines = Files.readAllLines(file.toPath(),
StandardCharsets.UTF_8);
double sum = 0;
double avg;
for(int n=1; n<3; ++n){
for (String line : lines) {
String[] array = line.split(",");
System.out.println(array[n]);
sum = sum + Double.parseDouble(array[n]);
}
avg = sum/rowCount;
System.out.print("Week ");
System.out.print(n);
System.out.print("Average = ");
System.out.print(avg);
System.out.println();
}
}
}
到目前为止,我试图把:
List<String> headerLine = Files.readLine(file.toPath());
上面的 “readAllLines”行但它不适用于我
问题是在“File file = new File(”attendance.csv“)后面的部分; – Win