instanceof |
isInstance()
|
reserved
word
|
method of java.lang.Class.
|
Could use instanceof on
types (which are known on compile time)
|
isInstance() could
only be called on an instance for java.lang.Class.
|
if (obj
instanceof MyType) {
... } if (MyType.class.isInstance(obj)) { ... } |
so you can have dynamism using isInstane() like this:
Class x = Integer.class; if (x.isInstance(obj)) { ... } x = String.class; if (x.isInstance(obj)) { ... } as you see you could check the type of an object with an unknown class during compile time! |
instanceof
is used to check to see if an object can be cast into a specified type
without throwing a cast class exception.
|
isInstance()
Determines if the specified Object is assignment-compatible with the object
represented by this Class.
|
Monday, August 6, 2012
instanceof v/s isInstance
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