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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! 💻✨
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