Java Collection, LinkedList Exercises: Convert a linked list to array list
Java Collection, LinkedList Exercises: Exercise-23 with Solution
Write a Java program to convert a linked list to array list.
Sample Solution:-
Java Code:
import java.util.*;
public class Exercise23 {
public static void main(String[] args) {
// create an empty linked list
LinkedList <String> linked_list = new LinkedList <String> ();
linked_list.add("Red");
linked_list.add("Green");
linked_list.add("Black");
linked_list.add("White");
linked_list.add("Pink");
System.out.println("Original linked list: " + linked_list);
//Convert a linked list to array list
List<String> list = new ArrayList<String>(linked_list);
for (String str : list){
System.out.println(str);
}
}
}
Sample Output:
Original linked list: [Red, Green, Black, White, Pink] Red Green Black White Pink
Pictorial Presentation:
Flowchart:

Java Code Editor:
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Next: Compare two linked lists.
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Java: Tips of the Day
countOccurrences
Counts the occurrences of a value in an array.
Use Arrays.stream().filter().count() to count total number of values that equals the specified value.
public static long countOccurrences(int[] numbers, int value) { return Arrays.stream(numbers) .filter(number -> number == value) .count(); }
Ref: https://bit.ly/3kCAgLb
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