The trim() method only removes whitespace from the start and end of the string. String text = " Java "; String trimmed = text.trim(); System.out.println(trimmed); // "Java" ... Explanation: trim() is useful when you only want to clean up leading ...

April 11, 2026 - #include <stdio.h> #include <string.h> char* removeSpaces(char s[]) { int n = strlen(s); for (int i = 0; i < n; i++) { if (s[i] == ' ') { // shift all characters to the left // starting from current index for (int j = i; j < n - 1; j++) { s[j] = s[j + 1]; } n--; i--; } } // return string up to new valid length // without spaces s[n] = '\0'; return s; } int main() { char s[] = "g eeks for ge eeks "; printf("%s", removeSpaces(s)); return 0; } Java ·

August 13, 2024 - Usually, when we need to deal with a string like myString in Java, we often face these two requirements: removing all whitespace characters from the given string -> “IamawonderfulString!” · replacing consecutive whitespace characters with a single space, and removing all leading and trailing whitespace characters -> “I am a wonderful String !”

import java.util.Scanner; class Main { public static void main(String[] args) { // create an object of Scanner Scanner sc = new Scanner(System.in); System.out.println("Enter the string"); // take the input String input = sc.nextLine(); System.out.println("Original String: " + input); // remove white spaces input = input.replaceAll("\\s", ""); System.out.println("Final String: " + input); sc.close(); } } Output · Enter the string J av a- P rog ram m ing Original String: J av a- P rog ram m ing Final String: Java-Programming · In the above example, we have used the Java Scanner to take input from the user.

January 6, 2024 - These spaces are eliminated once the method trim() is called and the output is printed. ... Scaler learners achieved 2.5x salary growth with average post-Scaler CTC reaching ₹23L. ... The strip() method was introduced in Java 11. It also removes leading and trailing spaces present in the string.

December 13, 2024 - The replaceAll() method is used with the regular expression \\s to match all whitespace characters (spaces, tabs, newlines, etc.) and replace them with an empty string "". The program prints the string without any whitespace using ...

July 30, 2025 - Trimming text in Java usually starts with the two most common methods built right into the String class: trim() and strip(). Both are meant to clean up extra spaces at the beginning and end of a string, but they work differently once you look closer.

December 16, 2024 - This method reads each character in the string and replaces each substring that matches the regex with the given replacement. Utilize the regex \\s+ which matches one or more whitespace characters.

January 12, 2023 - public class Remove_Whitespaces_from_String_Java_Example { public static void main(String[] args) { String str = " Here we have a string with whitespaces "; // Remove leading and trailing whitespaces String strWithoutLeadingandTrailingSpaces = str.strip(); // Remove all whitespaces String strWithoutAnySpace = str.replaceAll("\\s", ""); System.out.println("String without Leading & Trailing spaces: "+strWithoutLeadingandTrailingSpaces); System.out.println("String without any space: "+strWithoutAnySpace); } }

August 9, 2019 - We can also write a simple utility method to remove all the whitespaces from the string. It’s just for coding practice and you should adhere to the standard methods to replace whitespaces from the string. package net.javastring.strings; public class JavaRemoveWhitespaceFromString { public static void main(String[] args) { String str2 = "Hello\n\r\t Java"; // using replaceAll() System.out.println(str2.replaceAll("\\s", "")); // using custom method str2 = removeAllWhitespaces(str2); System.out.println(str2); } private static String removeAllWhitespaces(String str2) { char[] chars = str2.toCharArray(); StringBuilder sb = new StringBuilder(); for(int i = 0; i < chars.length; i++) { if(!Character.isWhitespace(chars[i])) { sb.append(chars[i]); } } return sb.toString(); } }

July 23, 2025 - // Java Program to remove // white spaces using regex import java.util.regex.*; // Main Class public class RegexWhiteSpaceExampleOne { // Main method public static void main(String[] args) { // Input String String inputString = " Welcome to GeeksForGeeks "; // Remove white spaces using regex String outputString = inputString.replaceAll("\\s+", ""); // Display the results System.out.println("Input String: \"" + inputString + "\""); System.out.println("Output String: \"" + outputString + "\""); } }

August 4, 2020 - It means we cannot modify a string, hence all the methods returns new string with all the transformations. trim() is the most commonly used method by java developers for removing leading and trailing spaces.

October 23, 2024 - "; // Using strip() to remove leading and trailing whitespace String strippedString = originalString.strip(); System.out.println("Original: '" + originalString + "'"); // Output: ' Hello, World!

June 25, 2025 - ". This string contains various whitespace characters, including spaces and a newline character. To remove all whitespace characters from the string, we use the replaceAll() method along with the regular expression pattern "\\s".

We have two methods to remove all the whitespaces from the string. In Java, we can use the built-in replaceAll() method to remove all the whitespaces of the given string.

December 9, 2025 - The trim() method removes any leading or trailing whitespace that might otherwise create empty strings in our result, while \\s+ efficiently handles any sequence of whitespace characters as delimiters, regardless of their specific type or quantity.

September 22, 2025 - Almost there... just a few more seconds

In this tutorial, we'll explore the different ways to remove whitespaces from a string in Java 11, covering both the built-in methods and some common use cases. In Java, a string is an immutable sequence of characters. This means that once a string is created, its value cannot be changed.