Dec 23, 2024 · In JSTL, the fn:toUpperCase() function is used to transform all the characters in a specified string to uppercase. If the input string is in lowercase, then this function can convert all the characters into uppercase. In this article, we will see the Syntax along with Parameters and detailed impleme

The toUpperCase() method converts a string to upper case letters. Note: The toLowerCase() method converts a string to lower case letters.

Oct 23, 2016 · return inputVal.substring(0,1).toUpperCase() + inputVal.substring(1).toLowerCase(); It basically handles special cases of empty and one-character string first and correctly cases a two-plus-character string otherwise.

Jan 8, 2024 · To create a new uppercase String based on name, we call the toUpperCase method: String uppercaseName = name.toUpperCase(); This results in uppercaseName having the value “JOHN DOE”: assertEquals("JOHN DOE", uppercaseName); Note that Strings are immutable in Java and that calling toUpperCase creates a new String.

Oct 10, 2023 · Java String toUpperCase () transforms a string by replacing all lowercase characters to uppercase while leaving any characters already in uppercase. The toUpperCase() method is a member of the java.lang.String class.

Mar 24, 2025 · The java string toUpperCase() method returns the string in uppercase letter. In other words, it converts all characters of the string into upper case letter. The toUpperCase() method works same as toUpperCase(Locale.getDefault()) method. It internally uses the default locale. Internal implementation

The Java String toUpperCase() method is used to convert all the characters of the given string into uppercase letters or alphabets. This method has two polymorphic variants, one without any arguments and the other one uses the criteria outlined by the given Locale data type to convert the string into uppercase.

To convert a string to uppercase in Java, call toUpperCase() method on the string object. The method returns a new String object with the characters in the original string transformed to uppercase letters.

Feb 5, 2025 · The toUpperCase() method takes a string and returns a new string where all lowercase letters are converted to uppercase. It does not modify the original string because String objects in Java...

Summary. In this lab, we learned how to check if a string is in uppercase in Java. We explored two primary methods. First, we compared a string with its uppercase version using the toUpperCase() method and the equals() method to perform a case-insensitive comparison. This method is useful for checking if two strings are the same regardless of their casing.