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Java - String replaceFirst() Method
Description:
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)
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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 Tutorialspoint.com");
System.out.print("Return Value :" );
System.out.println(Str.replaceFirst("(.*)Tutorials(.*)",
"AMROOD" ));
System.out.print("Return Value :" );
System.out.println(Str.replaceFirst("Tutorials", "AMROOD" ));
}
}
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This produces following result:
Return Value :AMROOD
Return Value :Welcome to AMROODpoint.com
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