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How to iterate a List using for-Each Loop in Java?
The List interface extends Collection interface and is an important member of Java Collections Framework. List interface declares the behavior of a collection that stores a sequence of elements. The most popular implementation of List interface is ArrayList. User of a list has quite precise control over where an element to be inserted in the List. These elements are accessible by their index and are searchable.
A forEach loop helps in iterating an array or collection of objects. As List contains objects, it can be easily iterated using forEach loop. Following code snippet shows how to use a forEach loop to iterate a list.
for (Integer integer : list) {
System.out.print(integer + " ");
}List interface also provides a forEach() method which can be used to iterate the list as shown below −
list.forEach(i -> {System.out.print(i + " ");});Example 1
Following is the example showing forEach loop to iterate the list −
package com.tutorialspoint;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class CollectionsDemo {
public static void main(String[] args) {
List<String> list = new ArrayList<>(Arrays.asList("A", "B", "C"));
for (String string : list) {
System.out.print(string + " ");
}
}
}Output
This will produce the following result −
A B C
Example 2
Following is the example showing List.forEach method to iterate the list −
package com.tutorialspoint;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class CollectionsDemo {
public static void main(String[] args) {
List<String> list = new ArrayList<>(Arrays.asList("A", "B", "C"));
list.forEach(i -> {System.out.print(i + " ");});
}
}Output
This will produce the following result −
A B C
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