我正在尝试编译,但出现此错误:
enigma/Rotor.java:30: incompatible types found : java.lang.String required: int switch(name){
1 error
为什么会出现此错误?我如何解决它?它在包装中,我似乎无法弄清楚。这是代码:
String label;
Rotor(){;}
Rotor(String name){
switch(name){
case "B":
conversion_chart = B;
break;
case "C":
conversion_chart = C;
break;
case "I":
conversion_chart=I;
notch = NOTCH[0];
break;
case "II":
conversion_chart=II;
notch = NOTCH[1];
break;
case "III":
conversion_chart=III;
notch = NOTCH[2];
break;
case "IV":
conversion_chart=IV;
notch = NOTCH[3];
break;
case "V":
conversion_chart=V;
notch = NOTCH[4];
break;
case "VI":
conversion_chart=VI;
notch = NOTCH[5];
break;
case "VII":
notch = NOTCH[6];
conversion_chart=VII;
break;
case "VIII":
notch = NOTCH[7];
conversion_chart=VIII;
break;
}
label = name;
position = 0;
}
最佳答案
switch(name)
从Java7开始仅支持带String的switch
语句。我猜您正在使用的编译器版本低于Java7
选项:
if/else
int
代替String