Convert String to String[] in Java

🤹‍♂️ Java String to String Array (and Back!) – The Fun Way

Ever wanted to break a string into tiny little pieces and then put it back together like a digital puzzle? Java's got you covered! Let's dive into the magical world of String.split() and Pattern.split() – and then, like a good magician, we'll bring it all back with String.join()! 🎩✨

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🔥 Breaking Strings Apart (String ➝ String Array)

1️⃣ Using String.split() – The Easy Way

Just like slicing a pizza 🍕, split() lets you divide a string into multiple pieces based on a delimiter.

String names = "alex,brian,charles,david";

String[] namesArray = names.split(","); // [alex, brian, charles, david]

Boom! You've got an array of names, ready for action. 🚀

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2️⃣ Using Pattern.split() – The Regex Ninja Move 🤺

If you like things fancy, you can use Pattern.split() instead. Think of it like wielding a lightsaber instead of a butter knife. ⚔️

String names = "alex,brian,charles,david";

Pattern pattern = Pattern.compile(",");
String[] namesArray = pattern.split(names); // [alex, brian, charles, david]

It does the same thing but allows for more complex pattern matching. Imagine splitting a string based on multiple delimiters – yeah, it's that powerful! 💪

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🧩 Putting Strings Back Together (String Array ➝ String)

Now, let's reverse the magic trick and reassemble our strings with String.join()!

String[] tokens = {"How", "To", "Do", "In", "Java"};

String blogName1 = String.join("", tokens);  // HowToDoInJava
String blogName2 = String.join(" ", tokens); // How To Do In Java
String blogName3 = String.join("-", tokens); // How-To-Do-In-Java

Whether you like your words squished together, spaced out, or dashed up, String.join() has your back! 💥

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🏆 Conclusion

Splitting and joining strings in Java is like playing with LEGO bricks – break them apart and snap them back together however you like! 🧱

💬 Got questions? Drop them in the comments below!

Happy Coding! 🎉