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.
views:
1304answers:
2
+5
A:
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?
Jon Skeet
2010-02-05 10:48:08
No its not a Boolean instance but has value as true or false
Ravi Gupta
2010-02-05 10:50:28
Then what type is it?
Matthew Flaschen
2010-02-05 10:51:18
Thanks it did the trick. How lame I am :)
Ravi Gupta
2010-02-05 10:52:35
I'm curious about what type is the variable... :)
helios
2010-02-05 10:53:40
Assuming true / false are Strings you could use: boolean b = Boolean.parseBoolean(String.valueOf(someObject)); Be aware that this will return false for any String value other than "true" (case insensitive) and hence will return false if someObject is null.
Adamski
2010-02-05 10:54:43
+2
A:
Assuming that yourObject.toString() returns "true" or "false", you can try
boolean b = Boolean.valueOf(yourObject.toString())
chburd
2010-02-05 10:54:00