Enhanced For Loop
The Enhanced For Loop in Java provides an alternative approach to traverse the array or collection in java and it eliminates the possibility of errors and makes it more readable. Its main purpose is to traverse the array or collection of elements. This loop is also called a For-Each loop.
It is also known as the for-each loop because it traverses each element one after another sequence and it makes the code readable. Enhanced for loops are simple to use. The break/continue statements can also be used to control the behavior of enhanced for loops.
Ex:
The usual way to go through all the elements of an array in order is by using the standard for loop
for(int i=0; i<myArray.length; i++)
{
System.out.println(myArray[i]);
}
But by using enhanced for loop is another way similar to the above
for(int arrayElement : array){
System.out.println(arrayElement);
}
Syntax
for(data_type variable : array | collection) {
// body of the for-each loop
}
Java Program
public class ForEachLoopDemo {
public static void main(String[] args) {
//declaring an array
int arr[]= {10,20,30,40};
//traversing the array with for-each loop
for(int i:arr) {
System.out.println(i);
}
}
}
Screenshot
Program Output
10
20
30
40
The disadvantage of the Enhanced For loop is that it cannot traverse the elements in reverse order because here we do not have any option to skip any element, as it is not dependent on an index.
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