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How to remove all whitespace from String in Java?

I have a String with white spaces how to remove these white spaces from this string? Please explain with an example.

1 Answer

The replaceAll() method of the String class replaces each substring of this string that matches the given regular expression with the given replacement. You can remove white spaces from a string by replacing " " with "".


Live Demo

import java.io.*;
public class Test {
   public static void main(String args[]) {
      String Str = new String("Hi how are you Welcome to Tutorialspoint.com");
      System.out.print("Return Value :" );
      System.out.println(Str.replaceAll(" ", ""));


Return Value :HihowareyouWelcometoTutorialspoint.com

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