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Start your free trialYogesh Ravi
1,028 PointsCannot understand the concept of word
Is word a variable that stores each of the words in the String? If so why it is not declared?
1 Answer
Jennifer Nordell
Treehouse TeacherHi there! I feel like you might be referring to this for loop in the video.
for(String word: treet.getWords()) {
System.out.println(word);
}
For loops are a bit special. The very first thing in there which is String word
is a declaration of a variable of type string. And what it's saying is that for each iteration it's going to pull out exactly one item from a collection and assign it to a local variable word
. The println
then uses this variable to display the value of word
and proceeds on to the next iteration until the collection is exhausted.
However, the scope of this variable is extremely limited. The second the for
loop stops running, that variable will no longer be accessible.
Hope this helps!
Yogesh Ravi
1,028 PointsYogesh Ravi
1,028 PointsThank you so much, this clear explanation made me understand.