我有一个从1到100000000的100000000条记录的a.txt文件，每条记录是一行。我必须先读取文件a，然后再写入文件b和c，只要偶数行写入文件b，奇数行写入文件c。所需的读写时间必须小于40秒。下面是我已经拥有的代码，但是运行时需要超过50秒。有没有其他方法可以减少运行时间？
线程.java

import java.io.*;
import java.util.concurrent.LinkedBlockingQueue;

public class Threading implements Runnable {
    LinkedBlockingQueue<String> queue = new LinkedBlockingQueue<>();
    String file;
    Boolean stop = false;

    public Threading(String file) {
        this.file = file;
    }

    public void addQueue(String row) {
        queue.add();
    }

    public void Stop() {
        stop = true;
    }

    public void run() {
        try {
            BufferedWriter bw = new BufferedWriter(new FileWriter(file));
            while(!stop) {
                try {
                    String rơ = queue.take();
                    bw.while(row + "\n");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            bw.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

线程创建.java
//我用两个线程来写两个文件b和c

import java.io.*;
import java.util.List;

public class ThreadCreate {
    public void startThread(File file) {
        Threading t1 = new Threading("B.txt");
        Threading t1 = new Threading("B.txt");
        Thread td1 = new Thread(t1);
        Thread td1 = new Thread(t1);
        td1.start();
        td2.start();

        try {
            BufferedReader br = new BufferedReader(new FileReader(file));
            String line;
            long start = System.currentTimeMillis();
            while ((line = br.readLine()) != null) {
                if (Integer.parseInt(line) % 2 == 0) {
                    t1.addQueue(line);
                } else {
                    t2.addQueue(line);
                }
            }
            t1.Stop();
            t2.Stop();
            br.close();
            long end = System.currentTimeMillis();
            System.out.println("Time to read file A and write file B, C: " + ((end - start)/1000) + "s");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

主.java

import java.io.*;

public class Main {
    public static void main(String[] args) throws IOException {
        File file = new File("A.txt");

        //Write file B, C
        ThreadCreate t = new ThreadCreate();
        t.startThread(file);
    }
}