String.equalsIgnoreCase(): The String.equalsIgnoreCase() method compares two strings irrespective of the case (lower or upper) of the string. (s1.equals(s4)) //false because content is not sameДў. (s1.equals(s3)) //false because case is not same (s1.equals(s2)) //true because content and case is same If all characters are matched, it returns true. If any character is not matched, it returns false.

equals() method: It compares the two given strings based on the content of the string. If Want to Compare Two Different StringsДЎ. String new_string = str.substring(1,6) // remember [ firstindex,lastindex ) 9. Thus the length of the substring is (endIndex вЂ“ beginIndex). substring(int beginIndex, int endIndex): The substring begins at the specified beginIndex and extends to the character at index endIndex вЂ“ 1. The substring begins with the character at the specified index and extends to the end of this string.Дў. substring(int beginIndex): This method returns a new string that is a substring of this string. If you need a subpart of String then java provides an elegant way of doing this by the following methods.ДЎ.

It returns true, if the length of string is 0 otherwise false. The java string isEmpty() method checks if this string is empty or not. It returns a count of the total number of characters. Int number=100 // similarly we can convert another data types too It converts given types such as int, long, float, double, boolean, char and char array into string. This can be done by Java String valueOf() method. (ntains(вЂњprotector of metropolisвЂќ)) // false 4. String name=вЂќBatman is protector of gothamвЂќ It returns true if a sequence of char values are found in this string otherwise returns false. The java string contains() method searches the sequence of characters in the string. The java string lastIndexOf() method returns the last index of the given character value or substring. String para=вЂќBatman is protector of gothamвЂќ Дў. It returns a numeric value (position) of a symbol. If you need position of any symbol, use indexOf(). This is the most frequent operation performed during string manipulation.ДЎ.

For trim method space character means any character whose ASCII value is less than or equal to 32 (вЂU+0020вЂ™).(h.charAt(4)) 2. Trim() is the most commonly used method by java developers for removing leading and trailing spaces. If you need to remove leading and trailing spaces the best option would be before java 11 trim() and from java 11 strip() method. It means we cannot modify a string, hence all the methods returns new string with all the transformations. Most important point to note is that in java a string object is immutable.

replaceFirst(): Replaces only first occurrence of target substring with new replacement string.

replaceAll vsВ replace: Differences between replace andВ replaceAllВ method.

It can be used to remove any conbination of spaces. This method takes regular expression as input to identify target substring that needs to be replaced.

replaceAll(): Replaces all matched characters with new character.

It will replace or remove all spaces leading, in between and trailing

replace(): Replaces all target characters with new character.

stripTrailing():(from java 11) Removes white spaces only from ending of the string.

stripLeading():(from java 11) Removes white spaces only from the beginning of the string.

trim vs strip: Differences between trim and strip method.

Strip method is Unicode charset aware meanse it removes spaces haveing different unicode

strip():(from java 11) Removes leading and trailing spaces from the string.

trim(): Removing leading and trailing spaces from the string.

Well, in this blog we shall cover the different methods in detail.Дifferent ways to remove spaces from string in java How do we decide which method suits us best? Each having its own advantages and disadvantages. We never stop and think is there may be a better way to suit our need? Sure, trim() works well for most of the cases, but there are many different methods in java. Majority of the times, we just use the trim method for removing spaces. So up till now we are all aware ofВ theВ different ways to remove spaces from string in java, namelyВ trim,В replaceAll.В However, java 11 has made some new additions to these with methods like,В strip,В stripLeadingВ ,В stripTrailing. Like removing spaces in or around the string text.В This also known as 'strip'pingВ off spaces in the string. String manipulation is done most often while programming.

Java string