Authors:
Michael T. Goodrich, Roberto Tamassia, Michael H. Goldwasser
Chapter:
Java Primer
Exercise:
Exercises
Question:9 | ISBN:9781118771334 | Edition: 6
Question
Write a short Java method that uses a StringBuilder instance to remove all the punctuation from a string s storing a sentence, for example, transforming the string "Let’s try, Mike!" to "Lets try Mike".
Answer
package java_problems_datastructures;
import java.util.Scanner;
public class CountVowels {
static String str;
private static void enterString() {
// we will just take input from the scanner don't do any operations on it.
Scanner input = new Scanner(System.in);
System.out.println("Enter a sring value: ");
str = input.nextLine();
input.close();
}
private static String removePunctuations(String string) {
/*
* replace all method takes two arguments first one is regex pattern in which
* you mention pattern applicable to remove all punctions in the string and in
* the second argument we pass the which one we want to replace with regex
* pattern to remove all punctuations look like below.
*/
string = string.replaceAll("\\p{P}", "");
return string;
}
public static void main(String[] args) {
enterString();
// print the modified string
System.out.println("After removing the all punctuations in the string is: " + removePunctuations(str));
}
}