Java for-each Loop

In Java, there is an alternative syntax of for loop to work with Java arrays and Java collections (known as for-each loop). For example,

$\begin{lstlisting} for (int a : array) { System.out.println(a); } \end{lstlisting}$

In Java, the for-each loop is used to iterate through each element of arrays or collections. It is also known as enhanced for loop. Here's what the for-each loop looks like in Java,

$\begin{lstlisting} for(data_type item : collections) { ... } \end{lstlisting}$

Here,

collection - a collection or array that you have to loop through.
item - every element of collection is assigned to item

$\begin{lstlisting} // The program below calculates the sum of all elements of an... ...m += number; } \par System.out.println(''Sum = '' + sum); } } \end{lstlisting}$

The output looks like Sum = 19. We can also verity the difference between for loop and for-each loop with the help of below code blocks.

Subsections

for loop
Using for-each loop