如何在一个方法内返回UTF-8格式的字符串，在另一个方法中调用输出？

Question

 package com.secutiry.rsa;

import java.util.Scanner;

public class Prtest {
    public String  Phintx(){
        Scanner cc =new Scanner(System.in);
                //下马这行会报错，选择try catch 或者 throw declaration
            //选择try catch 则无法return ,选择throw declaration 则在主方法中会报异常
        String tt =new String(cc.next().getBytes(),"utf-8");
        return tt;
    }
public static void main(String[] args)  {
  Prtest prtest = new Prtest();
  String tx = prtest.Phintx();
  System.out.println(tx);
}
}

Answer 1

cc.next()没有获取到字符串吧，你可以用try catch吃掉：
Scanner cc =new Scanner(System.in);
String tt = "";
try {
//下马这行会报错，选择try catch 或者 throw declaration
//选择try catch 则无法return ,选择throw declaration 则在主方法中会报异常
String tt =new String(cc.next().getBytes(),"utf-8");
} catch {}
return tt;
}