Question

How to remove specific characters from a string in Java

Answer 1

public class Program {
    public static String removeSpecificCharactersFromString(String str, char[] charsToRemove) {
        for (char ch : charsToRemove) {
            str = str.replace(String.valueOf(ch), "");
        }
        
        return str;
    }

    public static void main(String[] args) {
        String phone = "(555) 555-5555";
        char[] charsToRemove = {'(', ')', '-'};
        
        phone = removeSpecificCharactersFromString(phone, charsToRemove);
        
        System.out.println(phone);
    }
}

 
 
/*
run:
 
555 5555555
 
*/

 

70+ SQL courses for beginners and professionals

Answer 2

public class Program {
    public static void main(String[] args) {
        String phone = "(555) 555-5555";

        phone = phone.replaceAll("[()-]","");
         
        System.out.println(phone);
    }
}
 
  
  
/*
run:
  
555 5555555
  
*/

 

70+ SQL courses for beginners and professionals