Java-哈小奇: 2015

2015/5/29

第十二週利用app模擬器製作app

先到http://appinventor.mit.edu/explore/content/windows.html 點選dowmload下載模擬器

然後選擇 3. Start App Inventor 進入畫面

登入google帳號 & 進入此連結 http://beta.appinventor.mit.edu/.

打開模擬器並照以上網址的步驟設計

若要測試模擬器結果可點選New emulator 再點選 Connect to Device連線5554

若要存成apk檔，回到網頁點選Package for Phone，再選擇Download to this Computer

可將檔案傳到facebook 再利用手機連線FB 下載，即可使用app

註:限android手機

2015/5/22

import java.awt.*;
import java.awt.event.*;
import java.util.Random;
import javax.swing.*;

public class Calculator extends JFrame implements
ActionListener{
int space;
JButton button[]=new JButton[10];

public static void main(String[]args){

new Calculator();
}

public Calculator()
{
String s;
int myrand;
int[] a = { 0,1, 2, 3, 4, 5, 6, 7, 8 };
int[] aresult;
int temp;
Random ran = new Random();
/*
for (int i = 0; i < 9; i++)
{
System.out.println(a[i]);
}
*/
for (int i = 0; i < 9; i++)
{
myrand=ran.nextInt(9-i);
temp=a[8-i];
a[8-i]=a[myrand];
a[myrand]=temp;

}

for (int i = 0; i < 9; i++)
{
System.out.println(a[i]);
}

JFrame window=new JFrame("Calculator");

window.setDefaultLookAndFeelDecorated(true);

window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

window.setLayout(new GridLayout(3,3));

JPanel jplPanel = new JPanel();
jplPanel.setLayout(new GridLayout(3,3));

//s=Integer.toString(1);
s=String.valueOf(1);
//System.out.println(s);
//s="1";

for (int i = 0; i < 9; i++)
{
button[i] = new JButton();
button[i].setActionCommand(s);
button[i].addActionListener(this);
button[i].setSize(50,50);
button[i].setText(Integer.toString(a[i]));
jplPanel.add(button[i]);
if(Integer.valueOf(button[i].getText())==0)
{
space=i;
System.out.println(i);
}

}
window.getContentPane().add(jplPanel, BorderLayout.CENTER);
window.setSize(500,500);
window.setVisible(true);

}

public void actionPerformed(ActionEvent e) {

for(int i=0; i <= 8; i++)
{

if(e.getSource() == button[i]){
String tempstring;
if(i==space-1)
{
tempstring=button[i].getText();
button[i].setText(button[i+1].getText());
button[i+1].setText(tempstring);
System.out.println(i+button[i].getText());
}

if(i==space+1)
{
tempstring=button[i].getText();
button[i].setText(button[i-1].getText());
button[i-1].setText(tempstring);
System.out.println(i+button[i].getText());
}

if(i==space-3)
{
tempstring=button[i].getText();
button[i].setText(button[i+3].getText());
button[i+3].setText(tempstring);
System.out.println(i+button[i].getText());
}
if(i==space+3)
{
tempstring=button[i].getText();
button[i].setText(button[i-3].getText());
button[i-3].setText(tempstring);
System.out.println(i+button[i].getText());
}

}
}

}
}

2015/5/15

第十週產生3*3亂數不重複按鈕

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
public class Calculator extends JFrame implements ActionListener{
public static void main(String[]args){
new Calculator();

}
public Calculator()
{
String s;
Random ran = new Random();
int myran=ran.nextInt(9);

int temp;
int[] a1 = { 1, 2, 3, 4, 5, 6, 7, 8, 9};
int[] re;
for (int i = 0; i < 9; i++)
{
temp=a1[i];
a1[i]=a1[myran];
a1[myran]=temp;
}
JFrame window=new JFrame("Calculator");
window.setDefaultLookAndFeelDecorated(true);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setLayout(new GridLayout(3,3));
JPanel jplPanel = new JPanel();
jplPanel.setLayout(new GridLayout(3,3));
JButton button[]=new JButton[10];
s=String.valueOf(1);

for (int i = 0; i < 9; i++)
{
button[i] = new JButton();
button[i].setSize(50,50);

button[i].setText(Integer.toString(a1[i]));

//button[i].setActionCommand("此按鈕為:"+i);
button[i].addActionListener(this);
jplPanel.add(button[i]);
}
window.getContentPane().add(jplPanel, BorderLayout.CENTER);
window.setSize(500,500);
window.setVisible(true);
}
public void actionPerformed(ActionEvent e ) {
//String cmd = e.getActionCommand();
//System.out.println(cmd);
}
}

2015/5/8

第九週製作3*3陣列按鈕並產生亂數

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
public class Calculator extends JFrame implements ActionListener{
public static void main(String[]args){
new Calculator();

}
public Calculator()
{
String s;
JFrame window=new JFrame("Calculator");
window.setDefaultLookAndFeelDecorated(true);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setLayout(new GridLayout(3,3));
JPanel jplPanel = new JPanel();
jplPanel.setLayout(new GridLayout(3,3));
JButton button[]=new JButton[10];
s=String.valueOf(1);

for (int i = 1; i <= 9; i++)
{
button[i] = new JButton();
button[i].setSize(50,50);
Random ran = new Random();
int myran=ran.nextInt(9)+1;

button[i].setText(Integer.toString(myran));

//button[i].setActionCommand("此按鈕為:"+i);
button[i].addActionListener(this);
jplPanel.add(button[i]);
}
window.getContentPane().add(jplPanel, BorderLayout.CENTER);
window.setSize(500,500);
window.setVisible(true);
}
public void actionPerformed(ActionEvent e ) {
//String cmd = e.getActionCommand();
//System.out.println(cmd);
}
}
參考連結:http://hikari-solving.blogspot.tw/2012/02/java.html

2015/4/24

第七週製作16個按鈕&按出其對應的數字

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Calculator extends JFrame implements ActionListener{
public static void main(String[]args){
new Calculator();

}
public Calculator()
{
String s;
JFrame window=new JFrame("Calculator");
window.setDefaultLookAndFeelDecorated(true);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setLayout(new GridLayout(4,4));
JPanel jplPanel = new JPanel();
jplPanel.setLayout(new GridLayout(4,4));
JButton button[]=new JButton[17];
s=String.valueOf(1);
for (int i = 1; i <= 16; i++)
{
button[i] = new JButton();
button[i].setSize(50,50);
button[i].setText(Integer.toString(i));
button[i].setActionCommand("此按鈕為:"+i);
button[i].addActionListener(this);
jplPanel.add(button[i]);
}
window.getContentPane().add(jplPanel, BorderLayout.CENTER);
window.setSize(500,500);
window.setVisible(true);
}
public void actionPerformed(ActionEvent e ) {
String cmd = e.getActionCommand();
System.out.println(cmd);

}}

2015/4/17

第六週製作9個按鈕&印出按鈕數字

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Calculator extends JFrame implements ActionListener{
public static void main(String[]args){
new Calculator();

}
public Calculator()
{
String s;
JFrame window=new JFrame("Calculator");
window.setDefaultLookAndFeelDecorated(true);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setLayout(new GridLayout(3,3));
JPanel jplPanel = new JPanel();
jplPanel.setLayout(new GridLayout(3,3));
JButton button[]=new JButton[10];
s=String.valueOf(1);
for (int i = 1; i <= 9; i++)
{
button[i] = new JButton();
button[i].setSize(50,50);
button[i].setText(Integer.toString(i));
button[i].setActionCommand("此按鈕為:"+i);
button[i].addActionListener(this);
jplPanel.add(button[i]);
}
window.getContentPane().add(jplPanel, BorderLayout.CENTER);
window.setSize(500,500);
window.setVisible(true);
}
public void actionPerformed(ActionEvent e ) {
String cmd = e.getActionCommand();
System.out.println(cmd);

}}

2015/4/10

第五週製作按鈕跳出訊息&10個按鈕陣列

I. 製作按扭跳出訊息
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);
JButton jbnButton1 = new JButton("Button 1");
JButton jbnButton2 = new JButton("Button 2");
JButton jbnButton3 = new JButton("Button 3");
JButton jbnButton4 = new JButton("Button 4");
JButton jbnButton5 = new JButton("Button 5");
JButton jbnButton6 = new JButton("Button 6");
JButton jbnButton7 = new JButton("Button 7");
JButton jbnButton8 = new JButton("Button 8");
JButton jbnButton9 = new JButton("Button 9");

jbnButton1.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{ System.out.println("Button 1!");
}});

jbnButton2.addActionListener(new ActionListener()
{ public void actionPerformed(ActionEvent e)
{System.out.println("Button 2!");
}});

jbnButton3.addActionListener(new ActionListener()
{ public void actionPerformed(ActionEvent e)
{System.out.println("Button 3!");
}});

jbnButton4.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{System.out.println("Button 4!");
}});

jbnButton5.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{System.out.println("Button 5!");
}});

jbnButton6.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{System.out.println("Button 6!");
}});

jbnButton7.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{System.out.println("Button 7!");
}});

jbnButton8.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{System.out.println("Button 8!");
}});

jbnButton9.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{System.out.println("Button 9!");
}});

JPanel jplPanel = new JPanel();
jplPanel.add(jbnButton1);
jplPanel.add(jbnButton2);
jplPanel.add(jbnButton3);
jplPanel.add(jbnButton4);
jplPanel.add(jbnButton5);
jplPanel.add(jbnButton6);
jplPanel.add(jbnButton7);
jplPanel.add(jbnButton8);
jplPanel.add(jbnButton9);
jtfMainFrame.getContentPane().add(jplPanel, BorderLayout.CENTER);
jtfMainFrame.setVisible(true);
System.out.print("chih-yu hsu");
}
}

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

II. 製作10個陣列

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class Calculator extends JFrame{

public static void main(String[]args){

JFrame window=new JFrame("Calculator");

JPanel jplPanel = new JPanel();

JButton button[]=new JButton[10];

for(int i=0;i<button.length;i++){

button[i] = new JButton();

button[i].setSize(50,50);

button[i].setText(Integer.toString(i+1));

jplPanel.add(button[i]);

}

window.getContentPane().add(jplPanel, BorderLayout.CENTER);

window.setSize(500,500);

window.setVisible(true);

}}

參考網站: http://forums.devx.com/showthread.php?152151-How-to-create-objects

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

第二週

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("_____*_____");
}
}

訂閱：文章 (Atom)