Want to reverse a string in Java? In this video, I show you a few practical ways to do it that you can use right away. I start with the fastest and most straightforward option for most projects: StringBuilder. I create a new StringBuilder by passing in my original string, call .reverse() to flip it, and then convert it back to a normal String so you can store it (like in a variable such as reversedGreeting) and print it out. After that, I cover StringBuffer, which works basically the same way but is better suited for multi-threaded environments. It’s a bit slower than StringBuilder, but it’s the safer choice when thread-safety matters. Finally, if you want full control and you actually want to understand what’s happening, I walk through a manual loop approach: convert the string to a char array, use two pointers (begin and end), and swap characters inward using a temp variable until the string is reversed. By the end, you’ll know which method to pick depending on speed, thread-safety, and how much control you need.