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Java

Posted by vin kum
vin kum
3,546 Points

Question about Map.Entry ?

In the maps lesson, the instructor uses for( Map.Entry: examples.entrySet()){ //other code that I understood }

I did not understand the parameters in the for syntax. Thanx for the help.

1 Answer

Craig Dennis
STAFF
Craig Dennis
Treehouse Teacher
Craig Dennis
Craig Dennis
Treehouse Teacher

Hi vin kum !

That is what is known as the enhanced for loop.

String[] fruitBasket = {"apple", "banana", "cherry"};
// This can be read as for each fruit in fruitBasket.
for (String fruit : fruitBasket) {
    System.out.println(fruit);//... The first time this prints "apple", then "banana"
}

It's a handy way to iterate over a collection of items.

Does that clear things up?

vin kum
vin kum
3,546 Points

No it did not, sorry if I was not clear. What I meant is I did not understand what Map.Entry entry does and examples.entrySet() does?

Thank you!