java按文件格式读取文件

code:

import java.util.Scanner;
 import java.io.File;
 import java.io.FileNotFoundException;

public class ReadFile {

     private static void readFile1(String fileName) {
       try {
         Scanner scanner = new Scanner(new File(fileName));
         scanner.useDelimiter(System.getProperty("line.separator")); 

  //line.separator:获取系统换行符.
      System.out.println("姓名 年龄 时间 标记 ");
         while (scanner.hasNext()) {
           parseLine(scanner.next());
         }
         scanner.close();
       } catch (FileNotFoundException e) {
         e.printStackTrace();
       }
     }

     private static void parseLine(String line) {
       Scanner lineScanner = new Scanner(line);
       lineScanner.useDelimiter("\\s*,\\s*");
       //可以修改useDelimiter参数以读取不同分隔符分隔的内容

       String name = lineScanner.next();
       int age = lineScanner.nextInt();
       String idate = lineScanner.next();
       boolean isCertified = lineScanner.nextBoolean();
       System.out.println(name + " " + age + " "+idate+" " + isCertified+" " );
     }

     public static void main(String[] args) {
      // if (args.length != 1) {

       // System.err.println("usage: java ReadHuman file location");

      // System.exit(0);

     // }

       readFile1("D:\\test.txt");
     }
}


 

test.txt文件:

张三 ,28 ,FEB-01 ,true
李四 ,22 ,DEC-02 ,false
王五 ,21 ,DEC-03 ,false
赵六 ,25 ,DEC-04 ,true