Java方法定义与实现，初学者作业求程序小改动达到目的

Question

这个程序因为这个程序类中的参数是一开始设置好的，一旦运行一遍Scanner，参数就设置完成不能更改了，程序只能运行一遍，我的意思是需要输入两遍，达到最后同时输出zhigong1和zhigong2，各位高手应该明白我意思，公共的方法写入到类，对象的具体细节再调整。最好代码说明谢谢。

package zhigong;
import java.util.*;

 class Zhigong1 {

	String gender;
	String name;
	String number;
	Zhigong1(String a,String b,String c ){
		gender=c;
		name=b;
		number=a;
	}
	
	void dy() {
		System.out.println(number+" "+name+" "+gender);
	}
	}
	
	public class Zhigong{
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		System.out.println("What's your number?");
		String a = in.next();
		System.out.println("What's your name?");
		String b  = in.next();
		System.out.println("What's your gender?");
		String c = in.next();
		in.close();
		Zhigong1 zhigong = new Zhigong1(a,b,c);
		zhigong.dy();
	}}

Answer 1

import java.util.*;

 class Zhigong1 {
    String gender;
    String name;
    String number;
    Zhigong1(String a,String b,String c ){
        gender=c;
        name=b;
        number=a;
    }
    
    void dy() {
        System.out.println(number+" "+name+" "+gender);
    }
    }
    
    public class Zhigong{
    public static void main(String[] args) {
    	int i=0;
    	while(i<2) {
    		Scanner in = new Scanner(System.in);
            System.out.println("What's your number?");
            String a = in.next();
            System.out.println("What's your name?");
            String b  = in.next();
            System.out.println("What's your gender?");
            String c = in.next();
           // in.close();
            Zhigong1 zhigong = new Zhigong1(a,b,c);
            zhigong.dy();
            i++;
    	}
        
        
    }}