Java String replaceFirst() 方法

import java.io.*;

public class Test {



   public static void main(String args[]) {

      String Str = new String("Welcome to codingdict.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"));

   }

}