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! 💻✨
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! 💻✨
BY Top Java Quiz Questions ☕️
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Telegram Gives Up On Crypto Blockchain Project
Durov said on his Telegram channel today that the two and a half year blockchain and crypto project has been put to sleep. Ironically, after leaving Russia because the government wanted his encryption keys to his social media firm, Durov’s cryptocurrency idea lost steam because of a U.S. court. “The technology we created allowed for an open, free, decentralized exchange of value and ideas. TON had the potential to revolutionize how people store and transfer funds and information,” he wrote on his channel. “Unfortunately, a U.S. court stopped TON from happening.”
