Write a Java program (Project6.java) that prints all strings defined by a regula

Question

Write a Java program (Project6.java) that prints all strings defined by a regular expression up to a given length. Assume the alphabet = {0,1}. Prompt the user to enter a regular expression and an integer n. Print all the strings, with length n , defined by the regular expression. Use console based I/O. [The empty string can be printed with the Unicode “u03B5”, but Unicode may not be supported in some environments.]

A sample run of the program is shown bellow.

Regular expression: 01*|(10)*

n: 5

------- Strings in the language -------

0

01

10

011

0111

1010

01111

This program will prompt a user to enter a regular expression and an integer n. Please write program in Java from scratch.

Explanation / Answer

import java.util.regex.Matcher;
       import java.util.regex.Pattern;
public class A {
   public static void main(String args[]) {
       Pattern p = Pattern.compile("o1");
       Matcher mat = p.matcher("u03B51");
      
       while (mat.find()) {
           System.out.println("");
           for (int i = 0; i <=10;i++){
               System.out.println(" " + mat.group());
               }
           System.out.println("");
         
       }
      
       }
       }

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