java.lang.Character toUpperCase(int codePoint)
Description
Note that Character.isUpperCase(Character.toUpperCase(codePoint)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.
In general, String.toUpperCase() should be used to map characters to uppercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.
The toUpperCase(char ch) method of Character class is static thus it should be accessed statically which means the we would be calling this method in this format:
Character.toUpperCase(int codePoint)
Non static method is usually called by just declaring method_name(argument) however in this case since the method is static, it should be called by appending the class name as suffix. We will be encountering a compilation problem if we call the java toUpperCase() method non statically.
Method Syntax
public static int toUpperCase(int codePoint)
Method Argument
| Data Type | Parameter | Description |
|---|---|---|
| int | codepoint | the character (Unicode code point) to be converted. |
Method Returns
The toUpperCase(int codePoint) method of Character class returns the uppercase equivalent of the character, if any; otherwise, the character itself.
Compatibility
Requires Java 1.5 and up
Java Character toUpperCase(int codePoint) Example
Below is a simple java example on the usage of toUpperCase(int codePoint) method of Character class.
package com.javatutorialhq.java.examples;
/*
* This example source code demonstrates the use of
* toUpperCase(int codePoint) method of Character class.
*/
public class CharacterToUpperCaseCodePointExample {
public static void main(String[] args) {
// initialize a char
int codepoint = 102;
// convert codepoint to char
char ch = (char) codepoint;
// convert the code point to upper case
char chUpper = Character.toUpperCase(ch);
// print the result
System.out.println("character '" + ch + "' upper case is " + chUpper);
}
}
Sample Output
Below is the sample output when you run the above example.
