java_十进制数转换为二进制,八进制,十六进制数的算法

java_十进制数转换为二进制,八进制,十六进制数的算法

java Ê®½øÖÆÊýת»»Îª¶þ½øÖÆ,°Ë½øÖÆ,Ê®Áù½øÖÆÊýµÄË㕨 



using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;



namespace ExDtoB

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }







        //Ê®½øÖÆת¶þÖÆ

        public string DtoB(int d)

        {

            string b = "";

            //ÅжϸÃÊýÈç¹ûСÓÚ2£¬ÔòÖ±½ÓÊä³ö

            if (d < 2)

            {

                b = d.ToString();

            }

            else

            {

                int c;

                int s = 0;

                int n = d;

                while (n >= 2)

                {

                    s++;

                    n = n / 2;

                }

                int[] m = new int[s];

                int i = 0;

                do

                {

                    c = d / 2;

                    m[i++] = d % 2;

                    d = c;

                } while (c >= 2);

                b = d.ToString();

                for (int j = m.Length - 1; j >=0; j--)

                {

                    b += m[j].ToString ();

                }

            }

            return b;

        }





        //Ê®½øÖÆת°Ë½øÖÆ

        public string DtoO(int d)

        {

            string o = "";

            if (d < 8)

            {

                o = d.ToString();

            }

            else

            {

                int c;

                

                int s=0;

                int n=d;

                int temp = d;

                while (n >= 8)

                {

                    s++;

                    n = n / 8;

                }

                int[] m = new int[s];

                int i = 0;

                do

                {

                    c = d / 8;

                    m[i++] = d % 8;

                    d = c;

                } while (c >= 8);

                o = d.ToString();

                for (int j = m.Length - 1; j >= 0; j--)

                {

                    o += m[j];

                }

            }

            return o;

        }





        //Ê®½øÖÆתʮÁù½øÖÆ

        public string DtoX(int d)

        {

            string x = "";

            if (d < 16)

            {

                x = chang(d);

            }

            else

            {

                int c;



                int s = 0;

                int n = d;

                int temp = d;

                while (n >= 16)

                {

                    s++;

                    n = n / 16;

                }

                string [] m = new string[s];

                int i = 0;

                do

                {

                    c = d / 16;

                    m[i++] = chang(d % 16);//ÅжÏÊÇ•ñ´óÓÚ10£¬Èç¹û´óÓÚ10£¬Ôòת»»ÎªA~FµÄ¸ñʽ

                    d = c;

                } while (c >= 16);

                x = chang(d);

                for (int j = m.Length - 1; j >= 0; j--)

                {

                    x += m[j];

                }

            }

            return x;

        }





        //ÅжÏÊÇ•ñΪ10~15Ö®¼äµÄÊý£¬Èç¹ûÊÇÔò½øÐÐת»»

        public string chang(int d)

        {

            string x = "";

            switch (d)

            {

                case 10:

                    x = "A";

                    break;

                case 11:

                    x = "B";

                    break;

                case 12:

                    x = "C";

                    break;

                case 13:

                    x = "D";

                    break;

                case 14:

                    x = "E";

                    break;

                case 15:

                    x = "F";

                    break;

                default:

                    x = d.ToString();

                    break;

            }

            return x;

        }



        private void button1_Click(object sender, EventArgs e)

        {

            textBox2.Text = DtoB(Convert.ToInt32(textBox1.Text));//ʮת¶þ½øÖÆ

        }



        private void button2_Click(object sender, EventArgs e)

        {

            textBox2.Text = DtoO(Convert.ToInt32(textBox1.Text));//ʮת°Ë½øÖÆ

        }



        private void button3_Click(object sender, EventArgs e)

        {

            textBox2.Text = DtoX(Convert.ToInt32(textBox1.Text));//ʮתʮÁù½øÖÆ

        }

    }

}