How To Remove Single Character From A String By Index

To remove a single character from a String by its index in Java, you can use the StringBuilder class. The StringBuilder provides a method called ‘deleteCharAt’ which allows you to remove a character at a specific index.

Here is an example:

String originalString = "Hello World";
int indexToRemove = 6;

StringBuilder stringBuilder = new StringBuilder(originalString);
String modifiedString = stringBuilder.toString();

System.out.println("Modified String: " + modifiedString);


Modified String: Hello orld

In the above example, the original string is "Hello World". We specify the index of the character we want to remove (6 in this case) and use the deleteCharAt method of the StringBuilder to remove it. Finally, we convert the modified stringBuilder back to a String using the toString method.

Note that, unlike the String class, StringBuilder is mutable, meaning you can modify its contents. If you need an immutable String, you can create a new String object from the modified StringBuilder.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!