Home » Core Java » lang » StringBuffer » StringBuffer insert method

About Ilias Tsagklis

Ilias Tsagklis
Ilias is a software developer turned online entrepreneur. He is co-founder and Executive Editor at Java Code Geeks.

StringBuffer insert method

In this example we shall show you how to use insert method of StringBuffer. A StringBuffer is a thread-safe, mutable sequence of characters. A string buffer is like a String, but can be modified. At any point in time it contains some particular sequence of characters, but the length and content of the sequence can be changed through certain method calls. To use insert method of StringBuffer one should perform the following steps:

  • Create a new StringBuffer initialized to the contents of the specified string.
  • Use insert(int offset, String str) API method of StringBuffer. The method inserts the string into this character sequence,

as described in the code snippet below.

package com.javacodegeeks.snippets.core;

public class StringBufferInsertMethod {
	public static void main(String[] args) {
		StringBuffer sb = new StringBuffer("Java Code Geeks");
		String str1 = "Hello ";
		sb.insert(0, str1);
		String str2 = " to all the ";
		sb.insert(5, str2);



Java Code Geeks
Hello Java Code Geeks
Hello to all the  Java Code Geeks

This was an example of how to use insert method of StringBuffer in Java.

(No Ratings Yet)
Start the discussion Views Tweet it!

Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!


1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions

6. Spring Interview Questions

7. Android UI Design


and many more ....


Receive Java & Developer job alerts in your Area


Leave a Reply

Notify of