6 Ways To Initialize List Of String In Java

Java Hungry

Java developers tutorials and coding.

• HOME
• STRING
• COLLECTIONS
• INTERVIEW
• EXCEPTION
• DATA-STRUCTURES

• OOPS
• THREADS
• BOOKS/COURSES
• JAVA CODING PROGRAM
• MORE JAVA TOPICS

6 ways to Initialize List of String in Java In this post, I will be sharing how to initialize List of String in Java. There are six ways to achieve our goal: 1. Using ArrayList 2. Using Java 8 Stream.of() 3. Using Java 9 List.of() 4. Using Array's asList() method 5. Using ArrayList add() method 6. Using Guava library Read Also: How to Iterate list of lists in Java

1. Initialize List of String Without Values

1. Using ArrayList

The easiest way to initialize the List of String without values is using ArrayList. List<String> list1 = new ArrayList<>(); Similarly, we can initialize the List of String without values using LinkedList as shown below: List<String> list2 = new LinkedList<>();

2. Initialize List of String With Values

2. Using Java 8 Stream.of()

You can use the Java 8 Stream.of() method to initialize the list of string with values. import java.util.*; import java.util.stream.*; public class InitializeListOfString { public static void main(String args[]) { // Using Java 8 List<String> fruits = Stream.of("Apple", "Banana", "Orange").collect(Collectors.toList()); System.out.println(fruits); } } Output: [Apple, Banana, Orange]

3. Using Java 9 List.of()

List.of() method is introduced in Java 9. It can be used to initialize the list of string with values as shown below: import java.util.List; public class InitializeListOfString2 { public static void main(String args[]) { // Using Java 9 List<String> fruits = List.of("Apple", "Blackberry", "Strawberry"); System.out.println(fruits); } } Output: [Apple, Blackberry, Strawberry]

4. Using Arrays.asList() method

You can use Arrays class asList() method to initialize the list of string with values as shown below: import java.util.*; public class InitializeListOfString3 { public static void main(String args[]) { // Using Arrays.asList() method List<String> fruits = Arrays.asList("Apple", "Grape", "Pear"); System.out.println(fruits); } } Output: [Apple, Grape, Pear]

5. Using ArrayList class add() method

You can also use ArrayList class add() method to initialize list of string with values as shown below: import java.util.*; public class InitializeListOfString4 { public static void main(String args[]) { // Using ArrayList class add() method List<String> fruits = new ArrayList<>(); fruits.add("Apple"); fruits.add("Guava"); fruits.add("Litchi"); System.out.println(fruits); } } Output: [Apple, Guava, Litchi]

6. Using Guava library

You can use the guava library too to achieve our goal of initializing a list of string with values. import static com.google.common.collect.Lists.newArrayList; public class InitializeListOfString5 { public static void main(String args[]) { // Using Guava library newArrayList method List<String> fruits = newArrayList("Apple", "Pomegranate", "Banana"); System.out.println(fruits); } } Output: [Apple, Pomegranate, Banana]

3. Complete Example

Below is the complete example: import java.util.*; import java.util.stream.*; public class InitializeListOfStringComplete { public static void main(String args[]) { // Using Java 9 List.of() method List<String> fruits = List.of("Apple", "Blackberry", "Strawberry"); System.out.println(fruits); // Using Java 8 Stream.of() method List<String> fruits2 = Stream.of("Apple", "Banana", "Orange").collect(Collectors.toList()); System.out.println(fruits2); // Using Arrays.asList() method List<String> fruits3 = Arrays.asList("Apple", "Grape", "Pear"); System.out.println(fruits3); // Using ArrayList class add() method List<String> fruits4 = new ArrayList<>(); fruits4.add("Apple"); fruits4.add("Guava"); fruits4.add("Litchi"); System.out.println(fruits4); } } Output: [Apple, Blackberry, Strawberry] [Apple, Banana, Orange] [Apple, Grape, Pear] [Apple, Guava, Litchi] That's all for today. Please mention in the comments in case you have any questions related to different ways to initialize list of string in java.

About The Author Subham Mittal has worked in Oracle for 3 years. Enjoyed this post? Never miss out on future posts by subscribing JavaHungry

Get new posts by email:

Subscribe

WHATS HOT

• Best Laptops for Programming
• Best Books for Learning Java
• Amazon Interview Question : First Non repeated character in String
• Count total number of times each alphabet appears in the string java program code with example
• Java 8 new features : Lambda expressions , optional class , Defender methods with examples

Subscribe for Our Newsletter

POPULAR POSTS

• Java Interview Questions
• Top 50 Java Collections Interview Questions and Answers
• Web Services Interview Questions
• Java Multithreading Interview Questions and Answers
• Java Interview Programs

Return to Top ↑ Affiliate-Disclaimer Privacy Contact Java Hungry Copyright © 2025 · All Rights Reserved. Designed by studiopress