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Web29 Oct 2024 · 4. Using StringBuilder. We can get the same effect by using StringBuilder. We can replace the character at a specific index using the method setCharAt (): public String … Web29 Jan 2024 · Java provides several ways to swap characters in a String. Here are a few ways to do it, along with examples to help you understand the different methods. Method … WebJava StringBuilder setCharAt () method sets a specified character at the given index. This method changes the character sequence represented by StringBuilder object as it … cloud service hub for freee ヘルプ