在 switch 中使用数组作为 case 语句
我正在尝试做这样的事情,即在 switch 语句中使用数组.在Java中可能吗?如果不是,请说明一个可能的解决方案.
boolean[] values = new boolean[4];值 [0] = 真;值[1] = 假;值[2] = 假;值[3] = 真;开关(值){案例[真,假,真,假]:休息;案例[假,假,真,假]:休息;默认:休息;}
解决方案 NO,你根本做不到.
SwitchStatement:switch ( 表达式 ) SwitchBlock
<块引用>
表达式的类型必须是 char、byte、short、int、Character、Byte、Short、Integer、String 或枚举类型(第 8.9 节),否则会发生编译时错误.
http://docs.oracle.com/javase/specs/jls/se7/html/jls-14.html#jls-14.11
I am trying to do something like this, i.e., use an array in a switch statement. Is it possible in Java? If it isn't, please explain a possible solution.
boolean[] values = new boolean[4];
values[0] = true;
values[1] = false;
values[2] = false;
values[3] = true;
switch (values) {
case [true, false, true, false]:
break;
case [false, false, true, false]:
break;
default:
break;
}
解决方案
NO, simply you cannot.
SwitchStatement:
switch ( Expression ) SwitchBlock
The type of the Expression must be char, byte, short, int, Character, Byte, Short, Integer, String, or an enum type (§8.9), or a compile-time error occurs.
http://docs.oracle.com/javase/specs/jls/se7/html/jls-14.html#jls-14.11
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