GenerateMath/src/paper/PrimaryPaper.java

package paper;

import problem.PrimaryMathProblem;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class PrimaryPaper extends Paper {
  public PrimaryPaper(int problemNumber, String teacherName) {
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
    String formattedDate = "./doc/" + teacherName + "/" + sdf.format(new Date()) + ".txt";
    File file = new File(formattedDate);
    try {
      if (!file.exists()) {
        checkPath(file);
      } else {
        file.createNewFile();
      }
      BufferedWriter bw = new BufferedWriter(new FileWriter(file, true));
      for (int i = 1; i <= problemNumber; i++) {
        PrimaryMathProblem pmp = new PrimaryMathProblem();
        if (pmp.examine(teacherName)) {
          String line = String.valueOf(i) + "、" + pmp.content;
          bw.write(line);
          bw.newLine();
          bw.newLine();
        } else {
          i--;
        }
      }
      bw.close();
      System.out.println("已完成出题。");
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}