phil shea

I have a doubt regarding a static block. Here i have two classes(C1,C2).

_______________________________________________
class C1
{

static int x=10;

static
{
intx=99;
}

public static void main(String args[])
{
System.out.println("The value of x is : "+x);
}
}
_________________________________________________

class C2
{

static int x=10;

static
{
x=99;
}

public static void main(String args[])
{
System.out.println("The value of x is : "+x);
}
}

____________________________________________________

C1 produces an output of 10.
Whereas C2 produces 99.

What is exactly happening inside the static block??

-phil

sorry, i mean without changing the code

So all the legacy code which has used "enum" as a variable name will not work with Java1.5 with changing the code.

Hi,
I have a simple problem. I have downloaded a open source java project. And i tried to "build" it using Ant tool. The build has failed. And all the errors are related to "enum" keyword saying that "cannot use the 'enum' keyword as a variable.
I want to know whether "enum" keyword has become the part of java only with java 1.5?

Regards
vijay

I am really not getting what is the exact question of this particular thread.

Can the main method be overloaded or overridden?

I don't really understand what anyone can achieve by overriding the main method.

We can have any number of methods with the name "main" as long as their signatures are different. But "java" is only concerned with the main with the following signature.
public static void main(String args[])
This method you can have only one in a single class. And that is the method that "java" calls when a program is executed as an application.

-phil

If "final" is in front of a variable then that variable value cannot be changed after initializing it.

If "final" is in front of a method, then that particular method cannot be overriden.

If "final" is in front of a class, then we cannot extend that particular class.

Correct me if i am wrong.

-phil

Apart from simply cloning, all mutable fields need to be made independent of this object. Just to prevent unwanted access to this object's internal state. (correct me if i am wrong)

-phil

I do have that.

-phil

HI,
I am new to Ant build tool. I am trying to use it. I have unzipped the Ant into a folder and set the ANT_HOME environment variable. Seems everything is set properly.
Now, i have only one .java file in a folder. I have copied one sample build.xml file into that folder and in command prompt when i say "ant", it's saying Usage: bla bla bla.

can anyone help me out.

-phil

code:
--------------------------------------------------------------------------------

public class Outerclass
{
public void amethod()
{
System.out.println("In Outerclass - amethod()");
}
class Innerclass extends Outerclass
{
public void bmethod()
{
System.out.println("In Innerclass - bmethod()");
}
public void amethod()
{
System.out.println("In Innerclass - amethod()");
}
}
public static void main(String args[])
{
Outerclass o = new Outerclass();
Outerclass.Innerclass i = new Outerclass().new Innercla();
o.amethod();
i.bmethod();
i.amethod();
}
}


The above code has been posted in this thread. I tried compiling this code. But it's not compiling. Can anyone try and let me know.

-phil

Someone said, in Java memory is allocated by Garbage collector. Is that true? I thought memory in java is allocated by JVM.

-phil

I tried javac *.java. but it still shows the same error message.

phil