[ 48.008575] usb 4-3: >Device not responding to set address.[ 48.212421] usb 4-3: >device not accepting address 9, error -71
[ 48.324451] usb 4-3: >Device[ 48.528340] usb 4-3: >Device not responding to set address.[ 48.732165] usb 4-3</e
在Java中,我们使用final关键字和变量来指定它的值不被改变。但是我发现你可以改变类的构造函数/方法中的值。再次,如果变量是static那么这是一个编译错误。这里是代码:
import java.util.List;
private final List foo;现在改变变量为static:
private static final List foo;