Java String Replacefirst Method Example One of the java string methods is the replacefirst method, which replaces the first occurring substring with a freshly provided string. the java string replacefirst method substitutes a new string given by the user for the first substring that appears in an object. The replacefirst() method replaces the first match of a regular expression in a string with a new substring. replacement strings may contain a backreference in the form $n where n is the index of a group in the pattern.

Java Stringbuilder Replace Method Example The java string replacefirst () method replaces the first substring that matches the regex of the string with the specified text. in this tutorial, you will learn about the java string replacefirst () method with the help of examples.

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