Test instanceof: If the instanceof of A Woman returns true, it must be a human instance.

Test instanceof:

/*

* Created on Sep 23,200 4

*

* To change the template for this generated file go

* Window & gt; preferences & gt; Java & gt; Code Generation & gt; Code and comments

*/

Package

Think;

/**

*@ AuthorMengjun. Jiang

*

* To change the template for this generated type comment go

* Window & gt; preferences & gt; Java & gt; Code Generation & gt; Code and comments

*/

Public

ClassTest {

/**

*@ ParamStrings

*/

Public VoidReverse CT (string [] strings ){

//TodoAuto-generated method stub

}

Public Static VoidMain (string [] ARGs ){

Pet o =

NewGerbil ();

If(OInstanceofGerbil ){

System. Out. println (

"O is instance of gerbil ");

}

Else{

System. Out. println (

"O is not instance of gerbil ");

}

If(OInstanceofPet ){

System. Out. println (

"O is instance of pet ");

}

Else{

System. Out. println (

"O is not instance of gerbil ");

}

}

}

//: Think: gerbil. Java

Package

Think;

Public

ClassGerbilExtendsRodent {}///:~

//: C10: Pet. Java

Package

Think;

Public

ClassPet {}///:~