java 、在第一题的基础上，生成10个员工对象，创建2个线程，第一个线程将所有的2018年9月1日之前入职的男雇员信息写入到“D：\male.txt”文件中；第二个线程将所有女雇员信息写入到“D：

3、在第一题的基础上，生成10个员工对象，创建2个线程，第一个线程将所有的2018年9月1日之前入职的男雇员信息写入到“D：\male.txt”文件中；第二个线程将所有女雇员信息写入到“D：\female.txt”文件中。

4、在第三题的基础上，创建新目录“E:\employee”,然后将“D:\male.txt”和“D:\female.txt”按序拷贝到“E:\employee\employee.txt”中。

package java3;

import java.io.*;
import java.util.ArrayList;


				
 class Employee0 {

	public String name;
	public String ID;
	public int age;
	public String salary;

    public Employee0() {};
	public Employee0(String name,String ID,int age,String salary){
		
		this.name=name ;
		this.ID=ID;
		this.age=age;
		this.salary=salary;
		
	}
	
	public  String getID() {
		return ID;
	}
	
	public  String getName() {
		return name;
	}
	public int getAge() {
		return age;
	}

	public  String getSalary() {
		return salary;
	}

	public  String toString () {
		String mess = " 姓名:" +getName()+" 年龄:"+getAge()+ " ID:"+getID()+ "薪水:"+getSalary() ;
		 return mess;
	}
	

}

class runa implements Runnable{

	private ArrayList arraylist;
	private String path;
	
public runa(ArrayList arraylist,String path){
		this.arraylist=arraylist;
		this.path=path;
	}
	
	@Override
	public void run() {
		// TODO Auto-generated method stub
		String mess = null;
	
		try {
			System.out.println("hello ");
			File file =new File(path);
			
			if(!file.exists()) file.createNewFile();
			
			FileOutputStream fos=new FileOutputStream(file);
			for(int i=0;i<arraylist.size();i++) {
				if(((Employee0)arraylist.get(i)).getID().substring(8,10).equals("01")) {
		    		  mess="name:"+((Employee0)arraylist.get(i)).getName()+"\t"+"ID: "+((Employee0)arraylist.get(i)).getID()+"\t"+"age:"+((Employee0)arraylist.get(i)).getAge()+"\t"+"salary:"+((Employee0)arraylist.get(i)).getSalary()+"\n";
		    		  byte[] b=mess.getBytes();
		  			fos.write(b);
				}
				
				if(((Employee0)arraylist.get(i)).getID().substring(0,8).compareTo("20180901")<0&&((Employee0)arraylist.get(i)).getID().substring(8,10).equals("00")&&"D:\\male.txt".equals(path)) {
		    		  mess="name:"+((Employee0)arraylist.get(i)).getName()+"\t"+"ID: "+((Employee0)arraylist.get(i)).getID()+"\t"+"age:"+((Employee0)arraylist.get(i)).getAge()+"\t"+"salary:"+((Employee0)arraylist.get(i)).getSalary()+"\n";
		    		  byte[] b=mess.getBytes();
		  			fos.write(b);		    	 
				}
			}
			
			
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	
	
}
public class Employee{

	@SuppressWarnings("unchecked")
	public static void main(String []args) throws Exception{
	
		 //ArrayList<Employee> arraylist=new ArrayList<Employee>();
		 Employee0[] em=new Employee0[10];
		 em[1] =new Employee0("zengtao","2017010100222",22,"5800");
		 em[2] =new Employee0("zengtao1","2017010101223",22,"5800");
		 em[3] =new Employee0("zengtao2","2019010101232",22,"5800"); 
		 em[4] =new Employee0("zengtao3","2019010101256",22,"5800");
		 em[5] =new Employee0("zengtao4","2019010101256",22,"5800");
		 em[6] =new Employee0("zengtao5","2019010100256",22,"5800");
		 em[7] =new Employee0("zengtao6","2020010100289",22,"5800");
		 em[8] =new Employee0("zengtao7","2019010200200",22,"5800");
		 em[9] =new Employee0("zengtao8","2011010100212",22,"5800");
	     em[0] =new Employee0("zengtao9","1999010100222",22,"5800");
	    
   for(int i=0;i<10;i++) {
    	  if(em[i].getID().substring(0,8).compareTo("20180901")<0&&em[i].getID().substring(8,10).equals("00")) {
    		  System.out.println("name:"+em[i].getName()+"\t"+"ID:"+em[i].getID()+"\t"+"age:"+em[i].getAge()+"\t"+"salary:"+em[i].getSalary());
    	  }
      }
      
	ArrayList arraylist =new ArrayList();   

     runa r1=new runa(arraylist,"D:\\male.txt");
     runa r2=new runa(arraylist,"D:\\female.txt");
     Thread t1=new Thread(r1);
     Thread t2=new Thread(r2);
     for(int i=0;i<em.length;i++) 
 		arraylist.add(em[i]);
     t1.start();
     t2.start();
     
   File file1=new File("E:\\employee");
   File file2=new File("E:\\employee\\employee.txt");
   File file3=new File("D:\\male.txt");
   File file4=new File("D:\\female.txt");
   if(!file1.exists())  file1.mkdir();
   if(!file2.exists()) {
	   file2.createNewFile();
   }
   FileInputStream fis =new FileInputStream(file3);
   FileInputStream fis1 =new FileInputStream(file4);
   FileOutputStream fos=new FileOutputStream(file2);
 
   byte[] b =new byte[1000];
   fis.read(b,0,1000);
   fis1.read(b,0,1000);
   fos.write(b,0,1000);
   
   
	}

}