String replaceFirst(String regex, String replacement) method in Java

String replaceFirst(String regex, String replacement) method in Java

The replaceFirst(String regex, String replacement) method in Java replaces the first substring of this string that matches the given regular expression with the given replacement.

Syntax

Let us see the syntax,

Parameters

Let us see the parameters,

  • regex− regular expression to which this string is to be matched
  • replacement− the string that would replace

Example

The following is an example of replaceFirst(String regex, String replacement),

Output

The following is the output,

Java replacefirst string method

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