Java MultiThreaded数组不会输出到控制台

Question

因此我的程序应该打印出我使用多线程的数组，我不知道为什么不输出到控制台，但我知道它是在我的getter和setter中，但我环顾四周，并没有找到解决方案。这是我的代码。

public class multithreadTest{

 private static class Test implements Runnable{  
  private String [] questions;
  private String [] answers;
  private String [] category;

  public Test(String[] questions, String[] answers, String[] category){
      this.questions = questions;
      this.answers = answers;
      this.category = category;
   }
  public String[] getQuestions(){ return this.questions;}
  public String[] getAnswers(){return this.answers;}
  public String[] getCategory(){return this.category;}

  public void run(){
      System.out.println("Q: " + questions[1] + "A: " + answers[1] + "C: " +    category[1]);
}
 }

 public static void main(String[]args){
   String [] questions = new String[100];
   String [] answers = new String[100];
   String [] category = new String[100];

try{
     File file = new File("Questionbank.txt");

      Scanner sc = new Scanner(file);

      int l = 0;

      while(sc.hasNextLine()) {
        String line = sc.nextLine();
        String [] words = line.split("::");

        questions[l] = words[0];
        answers[l] = words[1];
        category[l] = words[2];
        //System.out.println("Q: " + Questions[l] + "A: " + Answers[l] + "C: " + Category[l]);
           l++;

     }
}catch(FileNotFoundException e){
    e.printStackTrace();
}


  Thread t = new Thread(new Test(questions,answers,category));
  t.start();
 }

}