Remove All Spaces in Java: Explanation & Practice

Problem summary

Write a program that removes all spaces from a string.

Starter code

public class Main {
    public static void main(String[] args) {
        String text = "H e l l o   W o r l d"; // Test case 1
        
        // Remove all spaces
        // Print result
    }
}

Expected output and test cases

• Remove all spaces

  HelloWorld

• Multiple spaces removed

  JavaProgramming

• Already no spaces

  NoSpaces

Hints

1. Use .replace(" ", "")
2. Or .replaceAll("\\s", "")
3. Loop and skip space characters

Related Strings exercises

• Practice Anagram Check in Java
• Practice Longest Word in Java
• Practice Character Frequency in Java

Practice all Strings exercises · Run this idea in the Java compiler