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Java Tutorial : Java wrapper class(conversion methods)

public class WrapperClassTest
{

    public static void main(String[] args)
    {

        /*
         * Decodes a string into an integer. Can accept
         * string representations of decimal, octal, or
         * hexadecimal numbers as input.
         */
        Integer integerObj = Integer.decode("99");
        System.out.println("Integer.decode(\"99\") = " + integerObj);

        /*
         * Returns an Integer object holding the value of
         * the specified string representation.
         */
        integerObj = Integer.valueOf("108");
        System.out
                .println("Integer.valueOf(\"108\") = " + integerObj);

        /*
         * Returns an Integer object holding the value of
         * the specified primitive.
         */
        integerObj = Integer.valueOf(10);
        System.out.println("Integer.valueOf(10) = " + integerObj);

        /*
         * Returns an Integer object holding the integer
         * value of the specified string representation,
         * parsed with the value of radix. For example, if s
         * = "333" and radix = 8, the method returns the
         * base-ten integer equivalent of the octal number
         * 333.
         */
        integerObj = Integer.valueOf("333", 8);
        System.out.println("Integer.valueOf(\"333\", 8) = "
                + integerObj);

        /*
         * Returns a String object representing the value of
         * this Integer.
         */
        String strValue = integerObj.toString();
        System.out.println("integerObj.toString() = " + strValue);

        /*
         * Returns a String object representing the
         * specified integer.
         */
        strValue = Integer.toString(876);
        System.out.println("integerObj.toString(876) = " + strValue);
        /*
         * Returns an integer (decimal only).
         */
        int intValue = Integer.parseInt("60");
        System.out.println("Integer.parseInt(\"60\") = " + intValue);

        /*
         * Returns an integer, given a string representation
         * of decimal, binary, octal, or hexadecimal (radix
         * equals 10, 2, 8, or 16 respectively) numbers as
         * input.
         */
        intValue = Integer.parseInt("24", 8);
        System.out.println("Integer.parseInt(\"24\", 8) = "
                + intValue);

    }
}