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How does this " if " statement behave

Shailendra Guggali
Ranch Hand

Joined: Feb 01, 2001
Posts: 86
check the foll code :
class Test
{
public static void main(String[] args)
{
if (args[0].equals("open"))
if (args[1].equals("someone"))
System.out.println("Hello!" );
else System.out.println("Go away "+ args[1]);
}
}
What would the output be if you enter the command line
1. java Test
2. java Test closed
3. java Test open
4. java Test open someone
Pls try to explain why - ( just answers can be obtained by running on the machine,but i want to understand why)
Priya Kannan
Ranch Hand

Joined: Jan 19, 2001
Posts: 72
Hi,
The Program can be interpreted as:

1) java Test------No arguments passed,trying to access args[0] & so ArrayIndexOutOf BoundsException thrown
2)java Test closed-----Fails at #1,control passes #6(No output)
3)java Test open----#1 condition succeeds,but since only one argument is passed, error at #2
4)java Test open someone----#1 condition succeeds,#2 condition succeeds,prints Hello!
I added the ubb code tags to make this clearer Carl
[This message has been edited by Carl Trusiak (edited February 04, 2001).]
Shailendra Guggali
Ranch Hand

Joined: Feb 01, 2001
Posts: 86
Thanx priya
i got it
further at //6 you can add one more else for the outer if statement - if - else is like LIFO
 
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subject: How does this " if " statement behave