java造测试数据

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;
import java.util.Random;

import static java.util.Arrays.asList;

public class test01 {
    public static void main(String[] args) {
        File file = null;
        FileWriter fw = null;
        file = new File("D:\temp\helloWord.txt");
        List<String> area=asList("山西","河南","湖北","北京") ;
        List<String> sex=asList("女","男") ;

        try {
            if (!file.exists()) {
                file.createNewFile();
            }
            fw = new FileWriter(file);
            for(int i = 1;i <=1000;i++){
                Random r = new Random();
                //获取0-9之间的随机数
                int number = r.nextInt(4);
                int sex01=r.nextInt(2);
                fw.write(area.get(number)+","+sex.get(sex01)+","+i+"
");//向文件中写入内容
                fw.flush();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            if(fw != null){
                try {
                    fw.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}