How Does Java's `replace` Method Work for String Replacement?

Replacing Strings in Java

When working with strings in Java, you may encounter situations where you need to replace a specific string with another. There is a powerful method available in Java that effortlessly handles this task: the replace method.

What is the replace Method?

The replace method allows you to search for a particular string within a given string and replace it with a specified replacement string. It takes two String arguments: the target string to be replaced and the replacement string.

Example #1

Consider the following example where we want to replace "HelloBrother" with "Brother":

String input = "HelloBrother";
String replacedString = input.replace("HelloBrother", "Brother");
System.out.println(replacedString); // Output: Brother

Example #2

In this example, we'll replace "JAVAISBEST" with "BEST":

String input = "JAVAISBEST";
String replacedString = input.replace("JAVAISBEST", "BEST");
System.out.println(replacedString); // Output: BEST

How it Works

The replace method iterates through the original string and compares each character to the target string. If a match is found, it replaces the target string with the replacement string. The process continues until the entire original string has been traversed.

Note: The replace method returns a new string containing the replacements. It does not modify the original string.

The above is the detailed content of How Does Java's `replace` Method Work for String Replacement?. For more information, please follow other related articles on the PHP Chinese website!