java.lang.Character.toUpperCase(char ch)

package com.codingdict;



import java.lang.*;



public class CharacterDemo {



   public static void main(String[] args) {



      // create 4 char primitives

      char ch1, ch2, ch3, ch4;



      // assign values to ch1, ch2

      ch1 = '4';

      ch2 = 'q';



      // assign uppercase of ch1, ch2 to ch3, ch4

      ch3 = Character.toUpperCase(ch1);

      ch4 = Character.toUpperCase(ch2);



      String str1 = "Uppercase of " + ch1 + " is " + ch3;

      String str2 = "Uppercase of " + ch2 + " is " + ch4;



      // print ch3, ch4 values

      System.out.println( str1 );

      System.out.println( str2 );

   }

}