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Java Tutorial : Java wrapper class (Character)

Java Tutorial : Java wrapper class (Character)

WrapperClassTest.java

public class WrapperClassTest
{

    public static void main(String[] args)
    {
        char ch = 'a';
        System.out.println("ch = " + ch);

        Character characterObj = new Character(ch);
        System.out.println("characterObj = " + characterObj);

        /*
         * If you pass a primitive char into a method that
         * expects an object, the compiler automatically
         * converts the char to a Character for you.This
         * feature is called autoboxing.
         */
        displayCharObj('c');

        /*
         * If you pass an object into a method that expects
         * an primitive char, the compiler automatically
         * converts the Character to a char for you.This
         * feature is called unboxing.
         */

        displayChar(new Character('z'));

    }

    public static void displayCharObj(Character characterObjParam)
    {
        System.out
                .println("characterObjParam = " + characterObjParam);
    }

    public static void displayChar(char chParam)
    {
        System.out.println("chParam = " + chParam);
    }
}