我正在调试一个 java 类的应用程序，当我在 case 39 中更改为使 intPos 62 而不是 63 不再起作用时，我的 switch 语句。现在不是在所有情况下都打印控制台输出，而是只为 switch 语句中的最后一种情况提供它。带有 switch 语句的类的代码如下。
public class NWSFB
{
/** A class variable containing the Station Weather */
private String strWeather ;
/** The Constructor */
public NWSFB(String strVar)
{
strWeather = strVar;
}
/** A method that finds the station */
public String getStationID(String strVar)
{
String stationId = strVar ;
return stationId.substring(0,3);
}
public String getWindInfo(String strAlt)
{
String strRet;
strRet = "The altitude weather for " + strAlt + "000 feet is " + getAltitudeWeather(strAlt)
+ "\nWind Direction:" +getWindDir(strAlt) +"0 degrees"
+ "\nWind Speed:" +getWindSpeed(strAlt) + " knots"
+ "\nWind temperature:" +getWindTemperature(strAlt) + "C"
+ "\n. . ."
+ "\n";
return strRet;
}
private int getPos(String strAlt)
{
int intAlt;
int intPos =0;
intAlt = Integer.parseInt(strAlt);
switch (intAlt)
{
case 3:
intPos = 4;
break;
case 6:
intPos = 9;
break;
case 9:
intPos = 17;
break;
case 12:
intPos = 25;
break;
case 18:
intPos = 33;
break;
case 24:
intPos = 41;
break;
case 30:
intPos = 49;
break;
case 34:
intPos = 56;
break;
case 39:
intPos = 62;
break;
}
return intPos;
}
public String getAltitudeWeather (String strAlt)
{
int intPosition = getPos(strAlt) ;
String strPos = strWeather.substring(intPosition, intPosition+7);
return strPos ;
}
//get wind direction
public String getWindDir(String strAlt)
{
String strPos = getAltitudeWeather(strAlt);
return strPos.substring(0,2);
}
//get wind speed
public String getWindSpeed(String strAlt)
{
String strPos = getAltitudeWeather(strAlt);
return strPos.substring(2,4);
}
//get wind temperature
public String getWindTemperature(String strAlt)
{
String strPos = getAltitudeWeather(strAlt);
return strPos.substring(4,7);
}
}
这是使用此代码的类
public class A19005
{
static String strStationWeather = "SAN 1905 1808+24 1512+17 1209+10 1708-06 2016-16 211831 211941 192652" ;
public static void main(String[] args)
{
//Create the myWeather object
NWSFB myWeather = new NWSFB(strStationWeather);
//use myWeather to get the weather at various altitudes
System.out.println("Sation ID: " + myWeather.getStationID(strStationWeather));
System.out.println(myWeather.getWindInfo("03"));
System.out.println(myWeather.getWindInfo("06"));
System.out.println(myWeather.getWindInfo("09"));
System.out.println(myWeather.getWindInfo("12"));
System.out.println(myWeather.getWindInfo("18"));
System.out.println(myWeather.getWindInfo("24"));
System.out.println(myWeather.getWindInfo("30"));
System.out.println(myWeather.getWindInfo("34"));
System.out.println(myWeather.getWindInfo("39"));
}
}
当我运行程序时，我得到 39000 英尺的高度天气是 192652 风向：210 度 风速：19 节 风温：41 C 。. .
而不是像我在案例 39 错误地获取所有高度的信息
intPost = 63
如何使我的代码工作，以便打印出所有高度的天气输出，而不仅仅是最后一个？
编辑：只是想出了更多信息，当最后一个案例是 3 而不是 2 时它起作用的原因是因为它不会在所有情况下编译最后一个案例，当 case39 被执行时，它是唯一运行的案例