Let's say we have an ArrayList of countries, as in ArrayList the insertion order is preserved by default the output is in the inserted order of the elements we added using the add method.
LinkedList<String> countriesList = new LinkedList<>();
countriesList.add("China");
countriesList.add("USA");
countriesList.add("Germany");
countriesList.add("France");
countriesList.add("India");
countriesList.add("Sweden");
countriesList.add("Australia");
System.out.println(countriesList);
Now let's take a look at various ways in which we can sort this ArrayList object.
Option 1: Using Collections.sort() method
Collections.sort(countriesList);
Option 2: Using LinkedList.sort() method:
countriesList.sort(null);
Option 3: Using Comparator
Comparator<String> comparator = (o1, o2) -> o1.compareTo(o2);
countriesList.sort(comparator);
Option 4: Using Java 8 Stream API
list = countriesList.stream().sorted().collect(Collectors.toCollection(LinkedList::new));
Facing issues? Have Questions? Post them here! I am happy to answer!
Author Info:
Rakesh (He/Him) has over 14+ years of experience in Web and Application development. He is the author of insightful How-To articles for Code2care.
Follow him on: X
You can also reach out to him via e-mail: rakesh@code2care.org
More Posts related to Java,
- Get the current timestamp in Java
- Java Stream with Multiple Filters Example
- Java SE JDBC with Prepared Statement Parameterized Select Example
- Fix: UnsupportedClassVersionError: Unsupported major.minor version 63.0
- [Fix] Java Exception with Lambda - Cannot invoke because object is null
- 7 deadly java.lang.OutOfMemoryError in Java Programming
- How to Calculate the SHA Hash Value of a File in Java
- Java JDBC Connection with Database using SSL (https) URL
- How to Add/Subtract Days to the Current Date in Java
- Create Nested Directories using Java Code
- Spring Boot: JDBCTemplate BatchUpdate Update Query Example
- What is CA FE BA BE 00 00 00 3D in Java Class Bytecode
- Save Java Object as JSON file using Jackson Library
- Adding Custom ASCII Text Banner in Spring Boot Application
- [Fix] Java: Type argument cannot be of primitive type generics
- List of New Features in Java 11 (JEPs)
- Java: How to Add two Maps with example
- Java JDBC Transition Management using PreparedStatement Examples
- Understanding and Handling NullPointerException in Java: Tips and Tricks for Effective Debugging
- Steps of working with Stored Procedures using JDBCTemplate Spring Boot
- Java 8 java.util.Function and BiFunction Examples
- The Motivation Behind Generics in Java Programming
- Get Current Local Date and Time using Java 8 DateTime API
- Java: Convert Char to ASCII
- Deep Dive: Why avoid java.util.Date and Calendar Classes
More Posts:
- How to print the key value pairs of a Dictionary in Python - Python
- fix macOS: The digital signature on the update is missing or invalid. Ventura - MacOS
- IntelliJ: Error: Could not find or load main class, java.lang.ClassNotFoundException - Java
- How to ignore files in git using .gitignore file - Git
- Python List of Lists with Examples - Python
- macOS R installation steps - MacOS
- Fix: AirPods not visible under Mac Bluetooth devices - MacOS
- Submit html form on dropdown menu value selection or change using javascript - JavaScript