Remove Consonants in Java

I wrote this program to ask the user to give string and then the program to remove the consonants in the given string using Java programming language.

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Program Listing

// demo.java

// Written By: Jake Rodriguez Pomperada

// Barangay Alijis, Bacolod City, Negros Occidental Philippines.

// www.jakerpomperada.com

// jakerpomperada@gmail.com

// May 14, 2020  Thursday

package test;

import java.util.Scanner;

public class demo {

   static String Remove_Consonants(String str)

   {

    return  str.replaceAll("[BCDFGHJKLMNPQRSTVXZbcdfghjklmnpqrstvxz]","" );

   }

public static void main(String[] args) {

     

Scanner in = new Scanner(System.in);

     

     String str_given,display_result;

     

    System.out.print("\n\n");

    System.out.print("\tRemove Consonants in Java");

    System.out.print("\n\n");

    System.out.print("\tGive a String : ");

    str_given = in.nextLine();

    

    System.out.print("\n"); 

    System.out.print("\tString : " + str_given);

    display_result = Remove_Consonants(str_given);

    System.out.print("\n");

    System.out.print("\tResult : " + display_result);

    System.out.println();  

}

}