Top Java Quiz Questions ☕️

Working with LinkedLists in Java: Custom toString() Method!

Hey everyone! 🎉 Today, I want to share a cool tip about using the LinkedList class in Java for better string representation.

By default, calling toString() on a LinkedList gives you a standard format. But often, we need something more customized. Here’s how you can implement your own toString() method:

1. Extend the LinkedList Class: Create a new class that inherits from LinkedList.
2. Override toString(): Customize how your list is represented as a string.

Here’s a quick example:

import java.util.LinkedList;

public class CustomLinkedList<E> extends LinkedList<E> {
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder("[");
        for (E element : this) {
            sb.append(element).append(", ");
        }
        if (sb.length() > 1) {
            sb.setLength(sb.length() - 2); // Remove last comma and space
        }
        sb.append("]");
        return sb.toString();
    }
}

Now, when you create an instance of CustomLinkedList, you get a nicely formatted output! 🌟

This approach not only enhances readability but also makes debugging easier. Happy coding! 💻✨

www.tg-me.com/in/Top Java Quiz Questions ️/com.topJavaQuizQuestions/432

827 viewsFeb 26 at 14:01

Working with LinkedLists in Java: Custom toString() Method!

Hey everyone! 🎉 Today, I want to share a cool tip about using the LinkedList class in Java for better string representation.

By default, calling toString() on a LinkedList gives you a standard format. But often, we need something more customized. Here’s how you can implement your own toString() method:

1. Extend the LinkedList Class: Create a new class that inherits from LinkedList.
2. Override toString(): Customize how your list is represented as a string.

Here’s a quick example:

import java.util.LinkedList;

public class CustomLinkedList<E> extends LinkedList<E> {
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder("[");
        for (E element : this) {
            sb.append(element).append(", ");
        }
        if (sb.length() > 1) {
            sb.setLength(sb.length() - 2); // Remove last comma and space
        }
        sb.append("]");
        return sb.toString();
    }
}

BY Top Java Quiz Questions ☕️