import java.io.*;
import java.lang.*;
class student{
String nam;
int num;
public student(String na,int nu){
nam=na;
num=nu;
}
public void display(){
System.out.println("姓名:"+nam+"学号："+num);
}
public static void main(String args[]){
student[] stu=new student[3];
stu[0]=new student("wang",001);
stu[1]=new student("liu",002);
stu[2]=new student("yang",003);
FileWriter f=new FileWriter("f.txt");
f.write(stu[0],0,stu.length());
f.flush();
f.close();
/* for(int i=0;i<3;i++){
stu.display();
} */
}
}
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