Excel Array Java

Question

我將我的excel文件導入到Java中。我現在試圖從我的數據中隨機挑選5個人。我將如何去做這件事......這是我迄今爲止的代碼。

import java.io.BufferedReader; 
import java.io.FileNotFoundException; 
import java.io.FileReader; 
import java.io.IOException; 
import java.util.StringTokenizer; 

public class Rewards { 

     public static void main(String[] args) throws FileNotFoundException, IOException { 

     String fileName = "C:/Users/Jordan/Desktop/Project5.csv"; 
    try { 
     BufferedReader br = new BufferedReader(new FileReader(fileName)); 
     String strLine = null; 
     StringTokenizer st = null; 
     int lineNumber = 0, tokenNumber = 0; 

     while((fileName = br.readLine()) != null) { 
      lineNumber++; 
      String[] result = fileName.split(","); 
      for (int x=0; x<result.length; x++) { 
       System.out.println(result[x]); 
      } 
     } 
    } 

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

Answer 1

我會從Random實例開始。你還可以在任何編程語言中僞隨機地做任何事情嗎？