How to remove spaces from a string in java

How do I remove spaces between strings in Java?

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 “”.

How do I remove spaces from a string?

If you want to remove spaces at the beginning (leading spaces) and spaces at the end (trailing spaces) best way to do it is to use trim() method of the Java String class. As per trim() method space is defined as any character whose codepoint is less than or equal to ‘U+0020’ (the space character).

How do you remove special characters and spaces from a string in Java?

In the following example, the removeAll() method removes all the special characters from the string and puts a space in place of them.

  1. public class RemoveSpecialCharacterExample1.
  2. {
  3. public static void main(String args[])
  4. {
  5. String str= “This#string%contains^special*characters&.”;
  6. str = str.replaceAll(“[^a-zA-Z0-9]”, ” “);

How do you remove spaces in Arraylist?

Try to remove all the spaces using replaceAll() when you are reading your file in the array.

How do I remove unnecessary spaces in Java?

To remove leading and trailing spaces in Java, use the trim() method. This method returns a copy of this string with leading and trailing white space removed, or this string if it has no leading or trailing white space.

How do I remove all spaces from a string in Linux?

`sed` command is another option to remove leading and trailing space or character from the string data. The following commands will remove the spaces from the variable, $myVar using `sed` command. Use sed ‘s/^ *//g’, to remove the leading white spaces. There is another way to remove whitespaces using `sed` command.

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How can I remove the leading spaces from a string in C?

The main() function calls the trimleading(char *s) function to remove the leading white spaces from the string.

How do I remove all formats of characters?

How to Remove Character Formats in Word 2013

  1. The Clear Formatting command removes the ALL CAPS text format but doesn’t change the case of text you created by using Shift, Caps Lock, or the Change Case command in Word.
  2. Another key combination for Ctrl+spacebar is Ctrl+Shift+Z.

How do I remove multiple characters from a string in Java?

You have two options here…

  1. replaceAll(“(Windows|Linux|Unix)\s+”, “”);
  2. List<String> terms = new ArrayList<>(Arrays. asList{“Windows\s+”, “Linux\s+”, “Unix\s+”}); for(String term : terms) { lesson = lesson. replaceAll(term, “”); }

How do you remove blank spaces from an Arraylist in Java?

removeAll(Arrays. asList(null,””)); This will remove all elements that are null or equals to “” in your List . You can remove an object by value.

How do you replace spaces in Java?


  1. public class ReplaceSpace.
  2. {
  3. public static void main(String[] args) {
  4. String string = “Once in a blue moon”;
  5. char ch = ‘-‘;
  6. //Replace space with specific character ch.
  7. string = string. replace(‘ ‘, ch);
  8. System. out. println(“String after replacing spaces with given character: “);

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