#include <stdio.h>
#include <stdlib.h>

int main()
{
    FILE *f = fopen("file.txt", "w+");
    if (f == NULL)
    {
      printf("Error opening file!\n");
      exit(1);
    }

    for(int i = 0; i <= 50000000; i++)
    {
        fprintf(f, "%i\n", i);
    }
    fclose(f);

    return 0;
}


import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

public class HelloWorld {
    public static void main(String[] args) {
        String text = "Hello world";
        BufferedWriter output = null;
        try {
            File file = new File("example.txt");
            output = new BufferedWriter(new FileWriter(file));
            for(int i = 0; i <= 50000000; i++){
               output.write(i+"\n");
            }
        } catch ( IOException e ) {
            e.printStackTrace();
        }
    }
}