Java String Replace Replaceall And Replacefirst Method

replace() replaceAll() replaceFirst()

With the help of replace() function in Java, you can replace characters in your string. Lets study each Java string API functions in details: Syntax: Parameters: oldCh − old character newCh − new character Return Value The Java replace() function returns a string by replacing oldCh with newCh. Example of replace() in Java: Let’s understand replace() in Java function with an example: Output: Original String is ‘: the quick fox jumped String after replacing ‘fox’ with ‘dog’: the quick dog jumped String after replacing all ‘t’ with ‘a’: ahe quick fox jumped Signature: Parameters: regx: regular expression replacement: replacement sequence of characters Example: Output: Guru99isasiteprovidingfreetutorials Syntax Parameters rgex − the regular expression to which given string need to matched. replacement − the string that replaces regular expression. Return Value This method returns resulting String as an output. Example of replaceFirst() in Java: Output: Thi9 website providing free tutorials