How can I cast a Java object into a boolean primitive
I tried like below but it doesn't work
boolean di = new Boolean(someObject).booleanValue();
The constructor Boolean(Object) is undefined
Please advise.
If the object is actually a Boolean instance, then just cast it:
boolean di = (Boolean) someObject;
The explicit cast will do the conversion to Boolean, and then there's the auto-unboxing to the primitive value. Or you can do that explicitly:
boolean di = ((Boolean) someObject).booleanValue();
If someObject doesn't refer to a Boolean value though, what do you want the code to do?
Assuming that yourObject.toString() returns "true" or "false", you can try
boolean b = Boolean.valueOf(yourObject.toString())
来源：https://stackoverflow.com/questions/2206598/how-to-cast-object-to-boolean