JavatoUpperCase(char ch)method is a part ofCharacterclass. This method converts the given character argument to the uppercase using case mapping information which is provided by the Unicode Data file. It must be noted thatCharacter.isUpperCase(Character.toUpperCase(ch))does not always returntruefor...
定义和用法 toUpperCase() 方法将字符串转换为大写字母。注:toLowerCase()方法将字符串转换为小写字母。 语法 public String toUpperCase() 参数 参数 描述 没有 示例 将字符串转换为大写和小写字母: public class MyC ...
Java - toUpperCase() Method - Learn Java in simple steps starting from beginners to advanced concepts. This tutorial will teach you concepts like Java Syntax, Variable Types, Data Types, Type Casting, Operators, Loops, Decision Making, Function, OOPs, Fi
JavatoUpperCase(int codePoint)method is a part ofCharacterclass. This method converts the specified Unicode code point character argument to the uppercase using case mapping information which is provided by the Unicode Data file. Syntax: public static int toUpperCase(int codePoint) Parameters: The ...
JavaObject Oriented ProgrammingProgramming In this article, we will learn how to convert all characters in a string to uppercase using the toUpperCase() method in Java. This method has two versions: one that uses the system's default language settings and another that lets you choose a ...
ExampleGet your own Java Server Convert a string to upper case and lower case letters: String txt = "Hello World"; System.out.println(txt.toUpperCase()); System.out.println(txt.toLowerCase()); Try it Yourself » Definition and UsageThe toUpperCase() method converts a string to upper ...
Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the#toUpperCase(int)method. Java documentation forjava.lang.Character.toUpperCase(char). Portions of this page are modifications based on work created and shared by theAndro...
Java String toUpperCase() Method: Here, we are going to learn about the toUpperCase() method with example in Java. Submitted by IncludeHelp, on February 08, 2019 String toUpperCase() MethodtoUpperCase() method is a String class method, it is used to convert given string into the uppercase....
String.ToUpperCase Method Reference Feedback Definition Namespace: Java.Lang Assembly: Mono.Android.dll Overloads Expand table ToUpperCase() Converts all of the characters in this String to upper case using the rules of the default locale. ToUpperCase(Locale) Converts all of the ...
Java Character toUpperCase(int codePoint) 方法 Character 類的 toUpperCase(int codePoint) 方法使用由 Unicode 數據文件提供的大小寫映射信息將給定的字符(Unicode 代碼點)參數轉換為大寫。 需要注意的是 Character.isUpperase(Character.UpperCase(codePoint)) 對於某些字符可能並不總是返回 true。