Java.lang.Character.toUpperCase() Method



The java.lang.Character.toUpperCase(int codePoint) converts the character (Unicode code point) argument to uppercase using case mapping information from the UnicodeData file.

Note that Character.isUpperCase(Character.toUpperCase(codePoint)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.


Following is the declaration for java.lang.Character.toUpperCase() method

public static int toUpperCase(int codePoint)


codePoint − the character (Unicode code point) to be converted

Return Value

This method returns the uppercase equivalent of the character, if any; otherwise, the character itself.




The following example shows the usage of lang.Character.toUpperCase() method.

package com.tutorialspoint;

import java.lang.*;

public class CharacterDemo {

   public static void main(String[] args) {

      // create 4 int primitives
      int cp1, cp2, cp3, cp4;

      // assign values to cp1, cp2
      cp1 = 0x0072; // represents r
      cp2 = 0x0569; // represents ARMENIAN SMALL LETTER TO

      // assign uppercase of cp1, cp2 to cp3, cp4
      cp3 = Character.toUpperCase(cp1);
      cp4 = Character.toUpperCase(cp2);

      String str1 = "Uppercase equivalent of " + cp1 + " is " + cp3;
      String str2 = "Uppercase equivalent of " + cp2 + " is " + cp4;

      // print cp3, cp4 values
      System.out.println( str1 );
      System.out.println( str2 );

Let us compile and run the above program, this will produce the following result −

Uppercase equivalent of 114 is 82
Uppercase equivalent of 1385 is 1337