This method replaces the first substring of this string that matches the given regular expression with the given replacement.
Syntax:
Here is the syntax of this method:
public String replaceFirst(String regex, String replacement)
Parameters:
Here is the detail of parameters:
Return Value :
Example:
import java.io.*;
public class Test{
public static void main(String args[]){
String Str = new String("Welcome to Dineshonjava.com");
System.out.print("Return Value :" );
System.out.println(Str.replaceFirst("(.*)Dineshon(.*)",
"SWEETY" ));
System.out.print("Return Value :" );
System.out.println(Str.replaceFirst("Dineshon", "SWEETY" ));
}
}
This produces following result:
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