"Java also supports foreach loops (which were introduced in JDK 1.5.0) which Java refers to as “Enhanced For Loops.” Foreach loops allow you to iterate over each element in a collection without having to define an index variable or otherwise “get” each element. We’ll revisit these concepts in detail in Chapter 31, but let’s take a look at a couple of examples. An enhanced for loop in Java still uses the keyword for but uses different syntax for its control. The example in Code Sample 28.5 illustrates this syntax: (int a : arr) . The last element of this syntax is a reference to the collection that we want to iterate over. The first part is the type and local reference variable that the loop will use.\n\n1 int arr[] = {10, 20, 8, 42};\n\n2 int sum = 0;\n\n3 for(int a : arr) {\n\n4 sum += a;\n\n5 }\n\nCode Sample 28.5.: Enhanced For Loops in Java Example 1"