How do I remove white-space from the beginning of a string?

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How do I remove white-space from the beginning of a string in Java without removing from the end?

If the value is:

String temp = "    hi    "

Then how can I delete only the leading white-space so it looks like this:

String temp = "hi    "

The current implementation I have is to loop through, checking the first character and creating a substring until the first non-whitespace value is reached.

Thanks!

You could use:

temp = temp.replaceFirst("^\\s*", "")

Javascript, One of the classic methods to remove white space from beginning and end of a string in Java is the trim() method, which removes white space from beginning and  The LTRIM function is used to remove any white spaces from the beginning of a string. The RTRIM function is used to remove any white spaces from the end of a string. Both these string functions are available in SQL Server, Oracle, MySQL and Microsoft Access. The syntax for the functions are as follows: LTRIM(String) RTRIM(String)

You could use Commons-lang StringUtils stripStart method.

If you pass null it will automatically trim the spaces.

StringUtils.stripStart(temp, null);

How to remove all white space from String in Java, It does not eliminated the middle spaces of the string. By calling the trim() method​, a new String object is returned. It doesn't replace the value of String object. 2. Remove all whitespaces using Character.isWhitespace() Another easy way to do this search and replace is by iterating over all characters of the string. Determine is current char is white space or printable character. Append all printable characters in a string and omit all white spaces. The resulted string will be free from all white spaces.

Probably close to the implementation of the suggested Commons-lang StringUtils.stripStart() method:

public static String trimFront(String input) {
    if (input == null) return input;
    for (int i = 0; i < input.length(); i++) {
        if (!Character.isWhitespace(input.charAt(i)))
            return input.substring(i);
    }
    return "";
}

Trim (Remove leading and trailing spaces) a string in Java , Today, we're going to look at a few different ways to remove whitespace from the start or end of a string with vanilla JavaScript. Let's dig in. There is an example of removing white space with the StringTokenizer in the Notepad.java source provided with your java development kit in the demo/jfc/stylepad folder: /** * Take the given string and chop it up into a series * of strings on whitespace boundries. This is useful * for trying to get an array of strings out of the * resource file. */

As of JDK11 you can use stripLeading:

String result = temp.stripLeading();

How to remove white space from the beginning or end of a string , Once you have all leading while spaces, you can replace them with empty string. Remove only leading spaces with replaceAll(). String regex = "^\\  1. Select a cell next to the cell you want to remove extra spaces from string, type this formula =TRIM (B2) B2 is the cell you want to remove spaces from, See screenshot:

Blatantly copied from java2s:

text = text.replaceAll("^\\s+", "");

...and modified using @Reimus's answer:

text = text.replaceFirst("^\\s+", "");

I'm not sure of the most efficient method; fwiw, I went with @Reimus's original.

Java remove leading whitespaces from 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  PHP trim() function is used for removing the white space or other characters from starting and end of a string. Its used for formatting data properly. In some cases unnecessary whitespaces may be there in the beginning or end of a string, we can use this function to remove those blank spaces.

Remove Spaces From a String in Java - trim(), strip(), trim() method trims the given string i.e it removes the white spaces at the beginning and at the end of a string, not between the words. remove  C Program for removing Whitespaces in a String. Below is a program to remove whitespaces from a given string. #include<stdio.h> #include<string.h> int main() { printf(" \t\tStudytonight - Best place to learn "); char aj[1000], mj[1000]; int i = 0, j = 0, len; printf(" Enter the string: "); gets(aj); len = strlen(aj); // len stores the length of the input string while(aj[i] != '\0

How To Remove White Spaces From String In Java?, Trimming functions remove whitespace from the beginning and/or end of a string. Native support for trimming was introduced in JavaScript 1.8.1,  How to Remove Whitespace from a String in PHP. In this article, we show how to remove whitespace either from the left side of a string or the right side of a string using the PHP trim() function. The trim() function erases white space from the left and right side of a string. This will be demonstrated below.

Trimming Strings in JavaScript, More "Try it Yourself" examples below. Definition and Usage. The trim() method removes whitespace from both sides of a string. Note: The trim() method does  You can use the PHP trim () function to remove whitespace including non-breaking spaces, newlines, and tabs from the beginning and end of the string. It will not remove whitespace occurs in the middle of the string. Let's take a look at an example to understand how it basically works:

Comments
  • This won't work with strings that already don't have whitespace. It should be temp.replaceFirst("^\\s*", ""); so that ^ matches the beginning of the string.
  • The OP would also need to make sure the String starts with whitespace characters.
  • The ^ is only needed when using String.replaceAll. While it will work fine here, it is not needed for String.replaceFirst