MAKUBEX: 2012

2012/12/16

[Software] Aegisub

A tool can convert subtitles from .ass/.ssa to .srt
support subtitle format: .ass .ssa .srt

Website: http://www.aegisub.org/

2012/08/26

好久沒coding了
趁著空檔簡單寫個測試亂數機率的程式
來個不傷腦力的這樣...

------------------------------------CODE------------------------------------

#include <cstdlib>
#include <iostream>
#include <time.h>

using namespace std;

int main(int argc, char *argv[])
{

int Cnt;
int Get;
int Box[9][2];
float Temp = 0;
srand(time(NULL));

for(int i=0; i<9; i++)
{
Box[i][0] = i+1;
Box[i][1] = 0;
}

cout << "實驗次數:";
cin >> Cnt;

for(int i=Cnt; i>0; i--)
{
Get = rand()%9+1;
Box[Get-1][1] = Box[Get-1][1]+1;
}

cout << endl;
cout << "數字\t次數\t機率" << endl;

for(int i=0; i<9; i++)
{
for(int j=0; j<2; j++)
{
cout << Box[i][j] << "\t" ;
}
Temp = Box[i][1];
cout << Temp / Cnt << endl;
}

system("PAUSE");
return EXIT_SUCCESS;
}

------------------------------------CODE------------------------------------

完畢，繼續唸書去...

2012/07/03

解決cin與getline()合用的問題

The problem:

cin>> leaves the newline character (\n) in the iostream. If getline is used after cin>>, the getline sees this newline character as leading whitespace, thinks it is finished and stops reading any further.

Reference：
http://mathbits.com/mathbits/compsci/APstrings/APgetline.htm (英文原文)
http://csie-tw.blogspot.tw/2007/10/cin-getlinecin-s.html (藏經閣，中文)

2012/06/18

數學動態繪圖軟體Geogebra

剛好最近弄三角函數需要
找到此一方便好用的數學動態繪圖軟體 Geogebra
重點是免費 + 跨平台
https://sites.google.com/a/ymsh.tp.edu.tw/geogebra/

2012/06/13

[Android]BMI

package kevin.demo;

import java.math.BigDecimal;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

public class BMIActivity extends Activity implements OnClickListener

{

private TextView txtResult;

private EditText edtWeight;

private EditText edtHeight;

private Button btnGo;

private TextView txtScale;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

txtResult = (TextView)findViewById(R.id.txtResult);

txtScale = (TextView)findViewById(R.id.txtScale);

edtHeight = (EditText)findViewById(R.id.edtHeight);

edtWeight = (EditText)findViewById(R.id.edtWeight);

btnGo = (Button)findViewById(R.id.btnGo);

btnGo.setOnClickListener(this);

}

public void onClick(View v)

{

// TODO Auto-generated method stub

if(v.equals(btnGo))

{

float W,H,BMI;

W = Float.parseFloat(edtWeight.getText().toString());

H = Float.parseFloat(edtHeight.getText().toString());

H = H / 100;

BMI = W / (H*H);

BigDecimal Get = new BigDecimal(BMI);

float Result = Get.setScale(2, BigDecimal.ROUND_HALF_UP).floatValue();

//四捨五入並保留兩位小數

txtResult.setText("您的BMI: "+Float.toString(Result));

if(BMI < 18.5)

{

//體重過輕

txtScale.setText("體重過輕");

}

else if((BMI >= 18.5)&&(BMI < 24))

{

//正常範圍

txtScale.setText("正常範圍");

}

else if((BMI >= 24)&&(BMI < 27))

{

//過重

txtScale.setText("體重過重");

}

else if((BMI >= 27)&&(BMI < 30))

{

//輕度肥胖

txtScale.setText("輕度肥胖");

}

else if((BMI >= 30)&&(BMI < 35))

{

//中度肥胖

txtScale.setText("中度肥胖");

}

else if(BMI >= 35)

{

//重度肥胖

txtScale.setText("重度肥胖");

}

}

APK檔：https://dl.dropbox.com/u/7806508/APK/BMI%20V1.0.apk
完整專案：https://dl.dropbox.com/u/7806508/Android%20App/BMI%20V1.0.rar

2012/05/26

install oracle-java on Ubuntu via PPA

找到比較方便的作法
利用PPA來源

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer

完成後用java-version來看看java是否已經替換成oracle java 7了

2012/05/20

刪除Ubuntu磁區後修復Windwos mbr

如果直接在Windwos底下的磁碟管理工具將Ubuntu所在磁區刪除
下次開機就會碰到GRUB無法抓到分割區的問題
如果要Windows正常運作

以Windows 7為例
用Windows 7安裝光碟開機
選擇修復選項
在命令提示字元中輸入

bootsect /nt60 SYS /mbr

接著重新開機即可

參考：http://ahhafree.blogspot.com/2011/11/ubuntu-grub-rescue.html

[C++]猜數字

C++寫的猜數字程式
猜一個四位數字(千位數不為0，且沒有數字重複)
它會提示有幾A幾B
ex: 2A1B
2A代表有2個數值猜對且位置正確
1B代表有1個數值猜對但位置不正確

以下為code

#include <iostream>
#include <cstdlib>
#include <sstream>
#include <time.h>

using namespace std;

//把整數轉為字串的副程式IntToString
string IntToString (int N)
{
string Get;
stringstream ss;
ss << N;
ss >> Get;
return Get;
}

int main()
{
string Answer; //儲存答案
string Guess; //儲存使用者猜的數字
int Num; //儲存由rand()產生的亂數
int A = 0;
int B = 0;
int Time = 5; //一個回合可以猜的次數
int Round = 1; //回合數初始值 = 1

srand(time(NULL));

while(true)
{
Answer = IntToString(rand()%9+1); //先將答案的千位數字指定為1~9之間的任意數字

for (int i=1; i<4; i++)
{
//產生謎底
Num = rand()%10;

if(Answer.find(IntToString(Num)) == -1)
{
Answer = Answer + IntToString(Num);
}

else
{
i--;
}
}

cout << "----------------------" << endl;
cout << "Round " << Round << endl; //提示目前回合
cout << endl;

while(true)
{
//將A與B值初始化
A = 0;
B = 0;

//使用者猜數字
cout << "請猜一個四位數字: ";
getline(cin,Guess);

//判斷幾A幾B
for (int i=0; i<4; i++)
{
for (int j=0; j<4; j++)
{
if((Answer[i] == Guess[j])&&(i == j))
{
A++; //值吻合且位置相同
}

else if((Answer[i] == Guess[j])&&(i != j))
{
B++; //值吻合但位置不同
}
}
}

//輸出提示
if (A == 4)
{
cout << "恭喜答對！" << endl;
break;
}

else if((A != 4)&&(Time > 1))
{
Time--;
cout << A << "A" << B << "B" << endl;
cout << "尚餘 " << Time << " 次機會..." << endl;
cout << endl;

//Debug過程用
//cout << Answer << endl;
}

else
{
break;
}

}

//
cout << A << "A" << B << "B" << endl;
cout << endl;
cout << "正確解答: " << Answer << endl;
Round++;
Answer = "";
Guess = "";
Time = 5;
}

return 0;
}

2012/05/02

[C++]跑馬燈改版

電腦課實做
隨手弄弄的作品...
就...橫桿轉呀轉的同時顯示進度...

#include <cstdlib>
#include <iostream>

using namespace std;

void Delay()
{
for(int i=0; i<60000000; i++)
{
//用於時間延遲的副程式
}
}

int main(int argc, char *argv[])
{
for(int i=1; i<=100; i++)
{
if(i % 4 == 0)
{
cout << "｜" << " . " << i << "%";
}

else if(i % 4 == 1)
{
cout << "／" << " .. " << i << "%";
}

else if(i % 4 == 2)
{
cout << "─" << " ... " << i << "%";
}

else if(i % 4 == 3)
{
cout << "＼" << " .... " << i << "%";
}

Delay();
system("CLS");
}

system("PAUSE");
return EXIT_SUCCESS;
}

2012/03/24

[java]猜數字

package kevin.demo;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class GuessApp
{

/**
* @param args
* @throws IOException
* @throws NumberFormatException
*/
public static void main(String[] args) throws NumberFormatException, IOException
{
// TODO Auto-generated method stub
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int Guess; //存放使用者輸入的數字
int Ans; //存放隨機產生的數值(答案)

Ans = (int)(Math.random()*100+1); //Math.random()產生的型別為double(介於0.0~1.0)，需用(int)轉換成int型別

for(int i=5; i>0; i--)
{
System.out.print("請猜一個數字:");
Guess = Integer.parseInt(br.readLine());

if(Guess == Ans)
{
System.out.println("恭喜您!答對了!");
break;
}
else if(Guess < Ans)
{
System.out.println("再大一點，您還剩下"+(i-1)+"次機會");
}
else if(Guess > Ans)
{
System.out.println("再小一點，您還剩下"+(i-1)+"次機會");
}
}

System.out.println("正解為:"+Ans);
}

}

2012/02/04

Ubuntu/Linux Mint安裝jdownloader

紀錄如何在Ubuntu/Linux Mint安裝jdownloader並啟用自動關機功能

首先，藉由ppa來源安裝jdownloader

sudo add-apt-repository ppa:jd-team/jdownloader

sudo apt-get update

sudo apt-get install jdownloader

安裝後如果要啟用jdownloader的自動關機

必須要讓使用者具有root權限來做關機的動作

所以接著要把使用者加入到sudoer文件中

為了防止出錯

先把sudoer這個檔案做備份

sudo cp /etc/sudoer /etc/sudoer.bak

接著用文字編輯器(這裡用的是vim)打開sudoer

sudo vim /etc/sudoer

在sudoer的最後加入

使用者名稱 ALL= NOPASSWD: /sbin/shutdown

存檔離開之後就可以正確執行jdownloader的自動關機功能

P.S如果所有步驟做完仍然不能執行，請先把sudoer回復

sudo cp /etc/sudoer.bak /etc/sudoer

參考資料：
http://www.arthurtoday.com/2010/03/sudoer.html
http://playubuntu.blogspot.com/2011/09/jdownloader.html

2012/01/28

[C++]Lottery Number Creator

實作C++亂數的使用

範例是用樂透彩，由電腦亂數取出每一組有6個數字(不重複)的序列並印出

#include <iostream>

#include <time.h>

using namespace std;

int main()

{

int a,n;

int Index = 0;

int Box[6];

bool Exist ;

srand(time(NULL));

cout << "Please input a number:";

cin >> n;

while(n > 0)

{

for(int i=0; i<6; i++)

{

a = rand()%49+1;

Exist = false;

for(int j=0; j<Index; j++)

{

if(Box[j] == a)

{

Exist = true;

break;

}

if(Exist == false)

{

Box[Index] = a;

Index++;

}

else

{

i--;

}

for(int i=0; i<6; i++)

{

if(Box[i] < 10)

{

cout << 0 << Box[i] << " ";

}

else

{

cout << Box[i] << " ";

}

cout << endl;

n--;

Index = 0;

}

system("PAUSE");

return 0;

}

2012/01/19

Blogger Dynamic Views

把網誌的樣式換成Blogger Dynamic Views
~~(其實是在http://btemplates.com/找到的樣式套上來都有點問題)~~
有別以往靜態顯示
從左上角的下拉式選單可以變換動態顯示的模式
整體看起來的效果滿簡潔的
小小的缺點是目前還沒有辦法加上像以前側欄的小工具、連結...等

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