JSP에서 매번 System.out.println() 해서 tomcat의 catalina.log 등을 tail 등으로 감시하면서 개발을 하다.
ibatis + log4j 를 이용하여 쿼리를 디버깅 하던중...
binding (?) 된 값을을 볼수 없을까 하고 찾아 보던중...

log4sql 을 발견!!!

기존 jdbc driver를 변경만 해주면 멋진 log들이...

  HashMap hashmap = new HashMap();

  Collection coll = hashmap.values();
  Iterator iter = coll.iterator();
  while (iter.hasNext()) {
    Object obj = iter.next();
  }

제9회 한국 자바 개발자 컨퍼런스 ...

NIKON CORPORATION | NIKON D80 | Normal program | Multi-Segment | 1/80sec | f4.5 | 0EV | 50mm | ISO-1600 | No Flash | 2008:02:17 11:23:20

NIKON CORPORATION | NIKON D80 | Normal program | Multi-Segment | 1/60sec | f4 | 0EV | 50mm | ISO-1600 | No Flash | 2008:02:17 11:33:15

NIKON CORPORATION | NIKON D80 | Normal program | Multi-Segment | 1/80sec | f4.5 | 0EV | 50mm | ISO-1600 | No Flash | 2008:02:17 11:33:31

NIKON CORPORATION | NIKON D80 | Normal program | Multi-Segment | 1/40sec | f3.2 | 0EV | 50mm | ISO-1600 | No Flash | 2008:02:17 11:39:39

NIKON CORPORATION | NIKON D80 | Manual | Multi-Segment | 1/40sec | f4.5 | 0EV | 50mm | ISO-640 | No Flash | 2008:02:17 18:05:30

-showsplash
org.eclipse.platform

-vmargs
-Xverify:none
-XX:+UseParallelGC
-XX:PermSize=64M
-XX:MaxPermSize=128M
-XX:MaxNewSize=64M
-XX:NewSize=64M
-Xms512m
-Xmx512m

eclipse.ini

Servlet to Applet (Echo)  Example

http://www.frank-buss.de/echoservlet/

[CODE type="java"]
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.util.StringTokenizer;
import java.io.IOException;

public class Grading
{

  private void mCTA()
  {

   BufferedReader br;
   StringTokenizer st=null;
   int i=0;
   int[] iArr= new int[10];

   System.out.print("Input ? ");

   br = new BufferedReader(new InputStreamReader(System.in));         

try
   {

     String str = br.readLine();
     System.out.println("\nInput-value = " + str);
     st = new StringTokenizer(str);
   }
  
   catch(IOException ioex)
   {
     ioex.printStackTrace();
   }

   while (st.hasMoreTokens())
   {
       iArr[i]= Integer.parseInt(st.nextToken());
       System.out.println("iArr[" + i + "]=" +iArr[i]);
       i++;
   }
  
  }

  public static void main(String[] args)
  {
   Grading cta=new Grading();
   cta.mCTA();
  }

}
[/HTML][/CODE]

[CODE type="java"]
class Middle2 {
public static void main(String arg[]) throws java.io.IOException{

 char choice;
 String s1="";
 String s2="";
 
 System.out.print("\n첫번째 문자열 입력 : ");
 while ((choice = (char)System.in.read()) != '\n')
 {
  s1 = s1 + choice;
 }
 System.out.print("\n첫번째 정수값 : ");
 System.out.println(s1);

 System.out.print("\n두번째 문자열 입력 : ");
 while ((choice = (char)System.in.read()) != '\n')
 {
  s2 = s2 + choice;
 }
 System.out.print("\n두번째 정수값 : ");
 System.out.println(s2);
 
 }
}

/* 위에서 제공하는 부분 코드를 가지고 중앙값을 구하는 프로그램을 완성하시오 */
[/HTML][/CODE]

[CODE type="java"]
import javax.swing.JOptionPane;

public class Addition
{
public static void main(String args[])
{
String firstNumber, secondNumber;
int number1, number2, sum;

firstNumber = JOptionPane.showInputDialog("Inter First Integer");

secondNumber = JOptionPane.showInputDialog("Enter Second Integer");

number1 = Integer.parseInt(firstNumber);
number2 = Integer.parseInt(secondNumber);

sum = number1 + number2;

JOptionPane.showMessageDialog(null, "The sum is " + sum, "Result", JOptionPane.PLAIN_MESSAGE);

System.exit(0);
}
}
[/HTML][/CODE]

[CODE type="java"]
class A { }
class B extends A { }
class C extends B { }

public class instanceofTest
{
public static void main(String args[])
{
 B ob = new B();
 if (ob instanceof B) System.out.println("B의 객체");
 if (ob instanceof C) System.out.println("C의 객체");
 if (ob instanceof A) System.out.println("A의 객체");
 
 A oa = new A();
 if (oa instanceof A) System.out.println("A의 객체");
 if (oa instanceof B) System.out.println("B의 객체");
 if (oa instanceof C) System.out.println("C의 객체");
 
}

}

[/HTML][/CODE]

[CODE type="java"]
class C1
{
protected int a = 50;
private int b = 100;
static String x = "파이팅 자바";
void write()
{
System.out.println(x);
System.out.println(a);
System.out.println(b);
}
}

class C2 extends C1
{
String b = "어려운 자바";
String x = "쉬운 자바";
void write()
{
System.out.println(x);
System.out.println(a);
System.out.println(b);
super.write();
}
}

public class SuperTest2
{
public static void main(String args[])
{
C2 o = new C2();
o.write();
}
}

[/HTML][/CODE]

[CODE type="java"]
class C1
{
int a=100;
static String b = "파이팅 자바";
}

class C2 extends C1
{
String b;
String x = "쉬운자바";
}

class Inheritance
{
public static void main(String args[])
{
C2 o = new C2();

System.out.println(o.x);
System.out.println(o.b);
System.out.println(o.a);
System.out.println(C1.b);
}
}
[/HTML][/CODE]