question about mock test

[VuTuan Tran]

This question is taken from SCJP 6 study guide

1.class Fork {
2.public static void main(String[] args) {
3.if(args.length == 1 | args[1].equals("test")) {
4.System.out.println("test case");
5.} else {
6.System.out.println("production " + args[0]);
7.}
8.}
9.}
And the command-line invocation:
java Fork live2
Question : what is the result

I dont understand why the answer is

E. An exception is thrown at runtime

My logic is :at line 3 we are going to have

3==1 | "fork".equals("test")

It is equivalent to

  false | false  =  false

I know my logic is wrong but I cant figure it out. Please help me to make it clear.Thanks

[Christophe Verré]

There's only one parameter : live2. So only args[0] is valid.

[VuTuan Tran]

Christophe Verré wrote:There's only one parameter : live2. So only args[0] is valid.

Ahhhhhhh, it is my bad. Thanks for pointing out.

[Campbell Ritchie]

Please always tell us what the thread is about; "question about mock test" is too vague.