Question
public static void main(String[] args)
{
Object obj = new Object()
{
public int hashCode()
{
return 42;
}
};
System.out.println(obj.hashCode());
}
What will be the output of the program?
public static void main(String[] args)
{
Object obj = new Object()
{
public int hashCode()
{
return 42;
}
};
System.out.println(obj.hashCode());
}
Answer: Option A
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This code is an example of an anonymous inner class. They can be declared to extend another
class or implement a single interface. Since they have no name you can not use the "new"
keyword on them.
In this case the annoynous class is extending the Object class. Within the {} you place the methods
you want for that class. After this class has been declared its methods can be used by that object
in the usual way e.g. objectname.annoymousClassMethod()
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