For Each Loops

From GCHSWiki
Jump to: navigation, search

The enhanced for loop is a simpler way to loop through an array or arrayList. (The colon in the syntax can be read as "in.")

for (int myValue : myArray) {

The enhanced for loop was introduced in Java 5 as a simpler way to iterate through all the elements of a Collection. It can also be used for arrays, as in the above example, but this is not the original purpose.

Enhanced for loops are simple but inflexible. They can be used when you wish to step through the elements of the array in first-to-last order, and you do not need to know the index of the current element. In all other cases, the "standard" for loop should be preferred.