无线电台的RS制信号报告是由三两个部分组成的：

R(Readability) 信号可辨度即清晰度.

S(Strength)    信号强度即大小.

其中R位于报告第一位，共分5级，用1—5数字表示.

1---Unreadable

2---Barely readable, occasional words distinguishable

3---Readable with considerable difficulty

4---Readable with practically no difficulty

5---Perfectly readable

报告第二位是S，共分九个级别，用1—9中的一位数字表示

1---Faint signals, barely perceptible

2---Very weak signals

3---Weak signals

4---Fair signals

5---Fairly good signals

6---Good signals

7---Moderately strong signals

8---Strong signals

9---Extremely strong signals

现在，你的程序要读入一个信号报告的数字，然后输出对应的含义。如读到59，则输出：

Extremely strong signals, perfectly readable.

输入格式:

一个整数，信号报告。整数的十位部分表示可辨度，个位部分表示强度。输入的整数范围是[11,59]内有效的数字，这个范围外的数字不可能出现在测试数据中。

输出格式：

一句话，表示这个信号报告的意义。按照题目中的文字，先输出表示强度的文字，跟上逗号和空格，然后是表示可辨度的文字，跟上句号。注意可辨度的句子的第一个字母是小写的。注意这里的标点符号都是英文的。

输入样例：

33

输出样例：

Weak signals, readable with considerable difficulty.

具体代码如下：

//作者： https://zouzhongliang.com/

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner in = new Scanner(System.in);
		
        int RSNum = in.nextInt(); 
        
        if(RSNum>59 || RSNum<11) {
        	System.out.println("请输入11-59之间数");
        }
        
        int sNum = RSNum%10;
        int RNum = RSNum/10;

        String s ="";

        switch(sNum) {

        case 1:
        	s = "Faint signals, barely perceptible";
        	break;

        case 2:
        	s = "Very weak signals";
    	break;

        case 3:
        	s = "Weak signals";
    	break;

        case 4:
        	s = "Fair signals";
    	break;

        case 5:
        	s = "Fairly good signals";
    	break;

        case 6:
        	s = "Good signals";
    	break;

        case 7:
        	s = "Moderately strong signals";
    	break;

        case 8:
        	s = "Strong signals";
    	break;

        case 9:
        	s = "Extremely strong signals";
    	break;
        
        }

        String R = "";
        switch(RNum) {
        case 1:
        	R = "unreadable";
    	break;

        case 2:
        	R = "barely readable, occasional words distinguishable";
    	break;

        case 3:
        	R = "readable with considerable difficulty";
    	break;

        case 4:
        	R = "readable with practically no difficulty";
    	break;

        case 5:
        	R = "perfectly readable";    
    	break;    
        }

        System.out.print(s+", "+R+".");
        
        in.close();
	}

}

转载：信号报告

https://zouzhongliang.com/index.php/2019/03/27/%E4%BF%A1%E5%8F%B7%E6%8A%A5%E5%91%8A/