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Replace all words with another string

public class MainClass {    public static void main( String args[] )    {       String firstString = "This sentence ends in 5 stars *****";       String secondString = "1, 2, 3, 4, 5, 6, 7, 8";                 System.out.printf( "Original String 1: %s\n", firstString );       // replace words with 'word'       System.out.printf( "Every word replaced by \"word\": %s\n\n",          firstString.replaceAll( "\\w+", "word" ) );       System.out.printf( "Original String 2: %s\n", secondString );    } } Original String 1: This sentence ends in 5 stars ***** Every word replaced by "word": word word word word word word ***** Original String 2: 1, 2, 3, 4, 5, 6, 7, 8