Need a clarification in the "for" loop

[Praveen]

Hi,

I came across the following piece of code in java

String []a;
String []b;

for (String x:a, String y:b) {
// do something

}

Is the above piece of code correct?
If so can anyone explain me what does it do?

 

[Jack]

Hi,

can't you try by yourself ? Juste oaste the code in any java file!!

Eclispe reject your code, so seems it's incorrect (with jdk1.5).


Praveen a écrit :

 

[Andreas Leitgeb]

I came across the following piece of code in java
String []a; String []b;
for (String x:a, String y:b) { /* do something */ }
Is the above piece of code correct?

can't you try by yourself ? Just paste the code in any java file!!
Eclipse reject your code, so seems it's incorrect (with jdk1.5).

Just a sidenote: Perhaps someone mixed up tcl with java here,
since tcl's foreach-loop does support parallel iteration of
multiple lists.

Perhaps the code was actually a sample for a "wishlist item"

 

[Praveen]

Thanks got it!!

 

[Lew]

(Top-posting corrected. Please do not top-post.)

Praveen a écrit :

I came across the following piece of code in java

String []a;
String []b;

for (String x:a, String y:b) {
// do something

}

Is the above piece of code correct?

No, as others have mentioned.

can't you try by yourself ? Juste oaste the code in any java file!!

Eclispe reject your code, so seems it's incorrect (with jdk1.5).

One could always check out the JLS, since we know Eclipse can and does report
as errors things that are actually legal Java.

The enhanced for statement has the form:

EnhancedForStatement:
for ( VariableModifiersopt Type Identifier: Expression) Statement

QED.

Language syntax questions can pretty much always be resolved by reference to
the JLS. Library questions can often be resolved by reference to the Javadocs.

Faster, more completely and more reliably than by Usenet.

 

[Roedy Green]

for (String x:a, String y:b) {

I think that was not written in Java.