transient

[suresh seeram]

Hi everybody,
Can any one clarify the follwing doubts
1. Why the transient variables may not be final , static or synchronous?
2.Can an innerclass is abstract? then why?
3. See the following code..
class Q14 {
2. public static void main(String[] args) {
3. int intNumber = 123456789;
4. float floatNumber = intNumber;
5. int x = (int)floatNumber;
6. System.out.println(intNumber - x); // -3
7. System.out.println(intNumber == x ); //False
System.out.println(Integer.MAX_VALUE+" "+x);//2147483647 123456792
8. }
9.}
Why the value of X is not same before and after assinging to float?

[marilyn murphy]

<pre>Originally posted by suresh seeram:
Can any one clarify the following doubts
2.Can an innerclass be abstract? then why?
</pre>

An abstract class must be subclassed to be useful. Are you going to subclass your innerclass as a second inner class? Why?
3. See the following code..

<font size=+0>
class Q14 
{ 
    public static void main( String[] args ) 
    { 
        int intNumber = 123456789 ;
        float floatNumber = intNumber ; 
        int x = (int)floatNumber ; 
        System.out.println( intNumber - x );  // -3 
        System.out.println( intNumber == x ); //False 
        System.out.println( Integer.MAX_VALUE + " " + x ); //2147483647  123456792
    } 
} 

<pre>Why is the value of X is not same before and after assigning to float?</pre>

Because of the way the computer stores floats.

[Nain Hwu]

Can any one clarify the follwing doubts
1. Why the transient variables may not be final , static or synchronous?
2.Can an innerclass is abstract? then why?

1. First of all, synchronized (there is no keyword synchronous)
is not applicable to variable.
Secondly, a variable can be transient, final and static.
There is no restriction.
But, transient static combination doesn't make too much sense since transient usually applies to instance variable.
2. An inner class can be declared as abstract. There is
simply no reason to prohibit it. (See InnerClass Specification
p.16)

[This message has been edited by Nain Hwu (edited October 09, 2001).]

[suresh seeram]

Hi marily and Nain,
thanks for your quick response..