Replace Characters in a String - A Java Code Example

Do you need help with your Java programming?

Click here for instant help with your Java code.

To replace a character in a string with another character you need to call the method replace() with the two characters as arguments.
The first argument is the character to be replaced and the second is the character that will be inserted.

/**
* Main.java
*
* @author www.javadb.com
*/
public class Main {

    /**
     * This method replaces characters in a string
     */
    public void replaceCharacters() {


        String str = "aaa bbb ccc";

        str = str.replace('b', 'd');

        System.out.println(str);
    }

    /**
     * Starts the program
     *
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Main().replaceCharacters();
    }
}

When the code above is executed it will display:

aaa ddd ccc

Do you know your Java?
Take a Ten-Question-Java-Quiz!

Search for code examples on this site

Need help with your Java code? It's secure and confidential.

This is how it works:

Send a detailed description of what you need help with, the more details the better. Also provide a deadline for when it has to be finished. More time means better chance of putting your request into the schedule.

If the request is serious you will shortly receive an email with the price, to which you have to respond if you accept.

Once you have accepted, the work will begin on developing your code by an experienced Java developer. When the code is finished a link to a secure payment will be sent to you.

The source code is then sent to you once the payment is completed.

IMPORTANT! The request needs to be very detailed, else it may be ignored.

Write your detailed request here:

E-mail address: