Java™ How To Program (Early Objects), Tenth Edition

Replacing Substrings and Splitting Strings

Sometimes it’s useful to replace parts of a string or to split a string into pieces. For this purpose, class String provides methods replaceAll, replaceFirst and split. These methods are demonstrated in Fig. 14.23.

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 1   // Fig. 14.23: RegexSubstitution.java 2   // String methods replaceFirst, replaceAll and split. 3   import java.util.Arrays; 4  5   public class RegexSubstitution 6   { 7      public static void main(String[] args) 8      { 9         String firstString = "This sentence ends in 5 stars *****";10         String secondString = "1, 2, 3, 4, 5, 6, 7, 8";11 12         System.out.printf("Original String 1: %s%n", firstString);13 14         // replace '*' with ...