Java-哈小奇

2015/4/10

第四週製作按鈕及對話視窗

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Test
{
public static void main(String[] args)
{

JFrame jtfMainFrame = new JFrame("Which Button Demo");
jtfMainFrame.setSize(450, 150);
JTextField jtfInput = new JTextField(20);
JButton jbnButton1=new JButton("Button 1");
JButton jbnButton2=new JButton("Button 2");
JPanel jplPanel = new JPanel();
JPanel jplPane2 = new JPanel();
jplPanel.setLayout(new FlowLayout());
jplPanel.add(jtfInput);
jplPanel.add(jbnButton1);
jplPanel.add(jbnButton2);
jtfMainFrame.getContentPane().add(jplPanel, BorderLayout.CENTER);
jtfMainFrame.pack();
jtfMainFrame.setVisible(true);
System.out.print("yan-ya,liou");
}
}

參考網站:http://www.javabeginner.com/java-swing/java-jbutton-class-example

2015/3/12

I (javascript)

複製以下程式到wordpad
存檔並將檔案類型存成.txt檔
到檔案改檔名為.htm
點開網頁即可

參考網址:http://taiwantc.com/js/js_tut_a1.htm

<html>
<head>
<title> The First Example: Hello, World </title>
</head>
<body>
<h2> This line is HTML </h2>

<script language="JavaScript">

</script>
<noscript>
Sorry, but your browser doesn't run JavaScript.
</noscript>

<h2> This line is HTML </h2>
</body>
</html>

II (java)

複製以下程式到wordpad

將檔名存為HelloWorldApp.java

點開命名提示

進入檔案連結cd C:\Users\student\Desktop\myjava

然後javac HelloWorldApp.java

java HelloWorldApp

參考聯結:http://docs.oracle.com/javase/tutorial/getStarted/cupojava/win32.html

/**
 * The HelloWorldApp class implements an application that
 * simply prints "Hello World!" to standard output.
 */
class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); // Display the string.
    }
}

III (java)

第一張圖:

複製以下程式到wordpad

改檔名為TestInet1.java

到命名提示字元輸入 javac TestInet1.java

java TestInet1

第二張圖:

輸入 ipconfig

參考聯結:http://xml-nchu.blogspot.tw/2012/12/java.html

import java.net.*;

public class TestInet1 {

public static void main(String argv[])

{

try {

InetAddress myip = InetAddress.getLocalHost();

System.out.println(myip.getHostName());

System.out.println(myip.getHostAddress());

} catch (UnknownHostException e) {

System.out.println("Error: unable to resolve localhost");

}

IV (javascipt)

複製以下程式碼到wordpad

將檔案類型改為.htm

點開網頁即可

參考聯結:http://www.hashemian.com/tools/visitor-IP.htm

VIH_BackColor = "palegreen";

VIH_ForeColor = "navy";

VIH_FontPix = "16";

VIH_DisplayFormat = "You are visiting from:<br>IP Address: %%IP%%<br>Host: %%HOST%%";

VIH_DisplayOnPage = "yes";

</script>

2015/3/5

第一週簡介&聖誕樹

1.為何why要選修這門課?(動機)
因為想要多學會一種程式語言
2.希望從這門課獲得哪些知識?(目標)
至少學會基礎的java程式，可以寫出一些簡易的成品
3.我要如何修習這一門課
每週認真上課，跟上進度

class Test
{
public static void main(String[] args)
{
System.out.println("_____*_____");
System.out.println("____***____");
System.out.println("___*****___");
System.out.println("__*******__");
System.out.println("_____*_____");
System.out.println("_____*_____");
}
}

2014/12/4

指導老師網誌連結

http://tccnchsu.blogspot.tw/

歡迎路過的人動動手指點進去參觀唷

2014/11/28

11/28 第十週使用陣列產生隨機變數

一開始，先宣告一4*4的二維陣列以及隨機變數函數
再來進入到表單，設定每個按鈕的位置以及長寬
最後利用變數函數將設定值定在0~16
再把所有設定的內容ADD進去

EX:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication10
{
public partial class Form1 : Form
{
Button[,] Button = new Button[4, 4];
Random irand = new Random();
int rd = 0;

public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
int x;
int width, height;
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
width = this.Size.Width;
height = this.Size.Height;
Button[i, j] = new Button();
Button[i, j].Location = new Point(i * 50, j * 50);
x = (i + 1) * (j + 1);
width = 50;
height = 50;
Button[i, j].Size = new Size(width, height);
Button[i, j].Text = x.ToString();
rd = irand.Next(0, 16);
Button[i, j].Text = Convert.ToString(rd);
this.Controls.Add(Button[i, j]);
}

}
}
}
}

2014/11/22

期中報告作業

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Diagnostics;

namespace WindowsFormsApplication14

{

public partial class Form1 : Form

{

Operator operator1 = new Operator();

public Form1()

{

InitializeComponent();

}

private void Form1_KeyDown(object sender, KeyEventArgs e)

{

if (e.KeyValue >= 96 && e.KeyValue <= 105)

{

operator1.choose(textBox1, (char)(e.KeyValue - 48));

}

else if (e.KeyValue >= 48 && e.KeyValue <= 57)

{

operator1.choose(textBox1, (char)e.KeyValue);

}

else

{

switch (e.KeyValue)

{

case 107:

operator1.choose(textBox1, '+');

break;

case 109:

operator1.choose(textBox1, '-');

break;

case 106:

operator1.choose(textBox1, '*');

break;

case 111:

operator1.choose(textBox1, '/');

break;

case 8:

operator1.choose(textBox1, 'B');

break;

case 13:

operator1.choose(textBox1, '=');

break;

case 27:

operator1.choose(textBox1, 'C');

break;

case 110:

operator1.choose(textBox1, '.');

break;

case 46:

operator1.choose(textBox1, 'D');

break;

default:

Debug.Print("keycode = " + (e.KeyValue).ToString());

break;

}

private void button20_Click(object sender, EventArgs e)

{

char ch = ((Button)sender).Text[0];

if (((Button)sender).Text == "CE")

ch = 'D';

else if (((Button)sender).Text == "sqrt")

ch = '@';

operator1.choose(textBox1, ch);

button5.Focus();

}

public class Operator

{

private double num = 0.0, ans = 0.0;

private char preOp;

private int opConter = 0;

private bool preIsOperator = true;

private bool preIskEquals = true;

private bool preIsDot = false;

private string Run(char ch)

{

switch (ch)

{

case '+':

ans = ans + num;

break;

case '-':

ans = ans - num;

break;

case '*':

ans = ans * num;

break;

case '/':

ans = ans / num;

break;

}

opConter = 0;

return ans.ToString();

}

public void choose(TextBox textBox1, char ch)

{

switch (ch)

{

case '+':

case '-':

case '*':

case '/':

if (!preIsOperator)

{

if (preOp == '\0') preOp = ch;

if (opConter > 0)

textBox1.Text = Run(preOp);

opConter++;

preIsOperator = true;

}

preIskEquals = false;

preIsDot = false;

preOp = ch;

break;

case '=':

textBox1.Text = Run(preOp);

preIskEquals = true;

preIsOperator = true;

preIsDot = false;

break;

case '@':

if (preIskEquals)

{

ans = Math.Sqrt(ans);

textBox1.Text = ans.ToString();

}

else

{

num = Math.Sqrt(num);

textBox1.Text = num.ToString();

}

break;

case 'D': // CE

textBox1.Text = "0";

num = double.Parse(textBox1.Text);

break;

case 'B': // BackSpace

if (textBox1.Text[textBox1.Text.Length - 1] == '.') preIsDot = false;

if (textBox1.Text.Length > 1)

textBox1.Text = textBox1.Text.Substring(0, textBox1.Text.Length - 1);

else

textBox1.Text = "0";

num = double.Parse(textBox1.Text);

break;

case 'C':

textBox1.Text = "0";

num = ans = 0.0;

preIskEquals = true;

preIsOperator = true;

preIsDot = false;

break;

case '.':

if (!preIsDot)

{

textBox1.Text += ".";

preIsOperator = false;

preIsDot = true;

}

break;

default:

if (preIsOperator) textBox1.Text = "";

textBox1.Text += ch.ToString();

if (preIskEquals)

{

ans = double.Parse(textBox1.Text);

num = 0.0;

}

else

num = double.Parse(textBox1.Text);

preIsOperator = false;

break;

}

Debug.Print("ans = " + ans.ToString() + ", num = " + num.ToString() + ", preOp = " + preOp.ToString() + ", ch = '" + ch.ToString() + "'\r\n");

}

2014/11/14

11/14 第八週九九乘法表(VB)&圈叉遊戲(C#)

九九乘法表

首先，99乘法表部分

同樣打開Excel，利用巨集部分編輯程式

為了以防工作單內容有東西

所以我們可輸入一程式碼將內容清空

再來，宣告變數S(行數)，i(被乘數)，j(乘數)

做兩階迴圈產生i*j的數值並傳到各行列，即完成99乘法表

EX:

Private Sub CommandButton1_Click()

Range("a1:h9").Clear

S = 1

For i = 1 To 9

For j = 1 To 9

result = i & "*" & j & " = " & i * j

Cells(j, S).Value = result

Next j

S = S + 1

Next i

End Sub

圈叉遊戲

EX:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication16

{

public partial class Form1 : Form

{

Button[,] Button = new Button[4, 4];

int c = 0;

int i, j, r;

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

for (i = 1; i < 4; i++)

{

for (j = 1; j < 4; j++)

{

Button[i, j] = new Button();

Button[i, j].Location = new Point(80 + i * 80, 80 + j * 80);

Button[i, j].Size = new Size(80, 80);

this.Controls.Add(Button[i, j]);

Button[i, j].Click += new EventHandler(Button1_Click);

}

private void Button1_Click(object sender, EventArgs e)

{

Button Buttons= sender as Button;

c = c + 1;

r = c % 2;

textBox1.Text = Convert.ToString(r);

if (r == 0)

{

Button[i, j].Text = "O".ToString();

}

else

{

Button[i, j].Text = "X".ToString();

}

2015/4/10

2015/3/12

I (javascript)

II (java)

III (java)

IV (javascipt)

2015/3/5

2014/12/4

指導老師網誌連結

2014/11/28

11/28 第十週 使用陣列產生隨機變數

2014/11/22

期中報告作業

2014/11/14

11/14 第八週 九九乘法表(VB)&圈叉遊戲(C#)

九九乘法表

圈叉遊戲

11/28 第十週使用陣列產生隨機變數

11/14 第八週九九乘法表(VB)&圈叉遊戲(C#)