The replace() method searches a string for a specified character, and returns a new string where the specified character(s) are replaced.

Feb 16, 2024 · The String replace () method returns a new string after replacing all the old characters/CharSequence with a given character/CharSequence. Return a new string where all ” o” characters are replaced with “p” character: oldch: the old character. newch: the new character.

To replace a substring, the replace() method takes these two parameters: The replace() method returns a new string where each occurrence of the matching character/text is replaced with the new character/text. public static void main(String[] args) { String str1 = "abc cba"; // all occurrences of 'a' is replaced with 'z' .

Apr 11, 2025 · The method replace() replaces all occurrences of a String in another String or all occurrences of a char with another char. Available Signatures public String replace(char oldChar, char newChar) public String replace(CharSequence target, CharSequence replacement)

Replacing one string with another can be done in the below methods. Method 1: Using String replaceAll. String myInput = "HelloBrother"; String myOutput = myInput.replaceAll("HelloBrother", "Brother"); // Replace hellobrother with brother. ---OR--- String myOutput = myInput.replaceAll("Hello", ""); // Replace hello with empty.

Mar 24, 2025 · The Java String class replace() method returns a string replacing all the old char or CharSequence to new char or CharSequence. Since JDK 1.5, a new replace() method is introduced that allows us to replace a sequence of char values.

Oct 11, 2023 · String.replace() Method. The replace() method is an overloaded method and comes in two versions: public String replace(char oldChar, char newChar); public String replace(CharSequence target, CharSequence replacement); The first method accepts the char types. It searches the string for specified oldChar and replaces each occurrence of oldChar ...

The String.replace() method in Java is used to replace occurrences of a specified character or substring with another character or substring. This guide will cover the method's usage, explain how it works, and provide examples to demonstrate its functionality.

Nov 11, 2012 · In short, to replace a String you should: Create a new String. Use replace(char oldChar, char newChar) API method. This method returns a new string resulting from replacing all occurrences of oldChar in this string with newChar. Use replaceFirst(String regex, String replacement) API method.

Java String replace () method allows you to replace all occurrences of a character or substring with a new character or substring in a string.