Java按行分割文本(其他解决方案不起作用)

Question

我正在编写 Java 中的分割行代码，但它无法正常工作。

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.lang.*;

public class mainprogram {
    public static void main(String [] args ) throws FileNotFoundException, IOException
    {
    //creating object for purpose of writing into file
    writFile ObjectwritFile = new writFile();

    //creating object for purpose of reading from file
    loadFile ObjectloadFile = new loadFile();

    //this will be used for storing text into from file
    String text="";

    //text = ObjectloadFile.loadFile("C://names.txt");

    System.out.println(text);

    ObjectwritFile.writeFile("C://testfile.txt",text);

   //these regexp didn't work
    //String regexp = "[\\r\\n]+"; 
   //String regexp = "[\\s,;\\n\\t]+";  

  String regexp = "[\\n]+";

   //this one didn't work  
   //String[] lines = text.split(regexp);



    String[] lines = text.split(System.getProperty("line.separator"));

    for(int i=0; i<lines.length; i++){

    System.out.println("Line "+i+": "+lines[i]);
    ObjectwritFile.writeFile("C://testfilelines.txt","Line "+i+": "+lines[i]);

    }         
          }

    }

文本采用这种格式。

John, Smith, 4 ,5 ,6
Adams, Olsen, 7,8, 3
Steve, Tomphson , 4,5 9
Jake, Oliver, 9,8,9

一旦我按行分隔文本，我就必须按字母和数字将其排序到具有相同文本格式的文件中。

Answer 1

您可以使用Scanner以 \n 作为分隔符，逐行读取。