Java新手求助：如何优雅地向心仪女生索要QQ联系方式（附代码示例与技巧）

import java.util.LinkedList;
import java.util.Queue;

public class Yule {
    private String QQ;    
    
    public Yule(String qQ) {
        this.QQ = qQ;
    }
    
    public String getQQ() {
        return QQ;
    }
    public void setQQ(String qQ) {
        QQ = qQ;
    }
    
    public String getRealQQ(){
        StringBuffer sb = new StringBuffer();
        int n = 1;        
        String str1= "";
        Queue queue = new LinkedList();
        
        for(int i =0 ;i){
            queue.add(String.valueOf(QQ.charAt(i)));
        }
        
        while((str1 = queue.poll()) != null){
            if(n%2 ==0){
                queue.add(str1);
            }else{
                sb.append(str1);
            }
            n++;            
        }
        return sb.toString();    
    }
    
    public static void main(String[] args) {
        System.out.println("女神qq号是："+new Yule("631758924").getRealQQ());
    }

}