package references;

import java.util.Arrays;

public class Experiments2
{

    /**
     * A few methods for exploring automatic boxing and unboxing in Java
     * Methods and examples based on a lab on boxing/unboxing by Samuel Rebelsky
     */

    /**
     * Add brackets around a string.
     */
    public static String bracket(String str)
    {
        return "[" + str + "]";
    } // bracket
    /**
     * Add parentheses around a stringified object.
     */
    public static String parenthesize(Object o)
    {
        return "(" + o.toString() + ")";
    } // parenthesize(Object)
    /**
     * Square an Integer.
     */
    public static Integer square(Integer x)
    {
        int val = x.intValue();
        return new Integer(val * val);
    } // square(Integer)
    /**
     * Square an int.
     */
    public static int sqr(int x)
    {
        return x * x;
    } // sqr

    /**
     * Sum an array of ints.
     */
    public static int littleSum(int[] values)
    {
        int sum = 0;
        for (int i = 0; i < values.length; i++)
            {
                sum += values[i];
            } // for
        return sum;
    } // littleSum(int[])
    /**
     * Sum an array of Integers.
     */
    public static Integer bigSum(Integer[] values)
    {
        int sum = 0;
        for (int i = 0; i < values.length; i++)
            {
                sum += values[i].intValue();
            } // for
        return new Integer(sum);
    } // bigSum(Integer[])

  public static void main(String[] args)
    throws Exception
  {
     Integer bigi = new Integer(5);
     int littlei = 3;
     String str = "Hello";
     int[] littlevals = new int[] { 1, 2, 3 };
     Integer[] bigvals =
         new Integer[] { new Integer(4), new Integer(5), new Integer(6) };
 
    // Print out our original values.
     System.out.println("bigi: " + bigi);
     System.out.println("littlei: " + littlei);
     System.out.println("str: " + str);
     System.out.println("bigvals: " + bigvals + " or " + Arrays.toString(bigvals));
     System.out.println("littlevals: " + littlevals + " or "
                 + Arrays.toString(littlevals));
     System.out.println();

  } // main
} // class Experiments2