The life of TB

# 정의 Reflection is a way to invoke methods of objects on the fly (At run-time).Reflection is the ability, at runtime, to actually create objects of classes, invoke methods, manipulate meta data. # - Reflection is available in most important languages (java, C# etc)- Reflection is slow and complicated- A method call via reflection may take 10X longer than usual # code import java.util.ArrayList; ..

Java 2016. 7. 22. 11:33

# 정의 - Is a widely used and very powerful technique of setting up member variables of complicated classes on the fly- It is fundamentally similar to the strategy pattern

Java 2016. 7. 22. 09:17

# ISummable.java public interface ISummable { int getSumUp(); void setNumber(int number);} # Zero.java public class Zero implements ISummable { @Override public int getSumUp() {return 0; } @Override public void setNumber(int number) { }} # Number.java public class Number implements ISummable { ISummable mSummable; private int number; public Number(ISummable summable) {this.mSummable = summable; ..

Java 2016. 7. 21. 21:03

# ICalc.java public interface ICalc { void calc(Data data);} # Data.java public class Data { private int x, y = 0; public Data(int x, int y) {this.x = x;this.y = y; } public int getX() { return x; } public int getY() { return y; }} # Plus.java public class Plus implements ICalc { @Override public void calc(Data data) {int x = data.getX();int y = data.getY();System.out.println("plus: " + (x + y))..

Java 2016. 7. 21. 14:58

# Handler.java import java.util.ArrayList; public abstract class Handler { Handler nextHandler; protected void setNextHandler(Handler handler) {this.nextHandler = handler; } protected void setNextHandlers(ArrayList handlers) {for (int i = 0; i < handlers.size() - 1; i++) { handlers.get(i).setNextHandler(handlers.get(i + 1));} } abstract void checkRequest(Request request);} # Request.java public ..

Java 2016. 7. 21. 14:11

# Item.java public class Item { private String name; private int value; public Item(String name, int value) {this.name = name;this.value = value; } public int getValue() { return value; } public String getName() { return name; }} # Main.java import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.List; public class Main { private static void printItem..

Java 2016. 7. 21. 10:27

# Template.java public abstract class Template { public boolean isOn; public Template() {this.isOn = false; } abstract void welcome(); abstract void turnOn(); abstract void turnOff(); public final void setup() {if (!isOn) { welcome(); turnOn();} } public final void toggleSwitch() {if (this.isOn) turnOff();else { welcome(); turnOn();} }} # PC.java public class PC extends Template { @Override void..

Java 2016. 7. 20. 21:43

# ICalcStrategy.java public interface ICalcStrategy { int calc(Data data); } # Data.java public class Data { private int x, y; private ICalcStrategy iCalcStrategy; public Data(int x, int y, ICalcStrategy iCalcStrategy) {this.x = x;this.y = y;this.iCalcStrategy = iCalcStrategy; } public int calc() {return iCalcStrategy.calc(this); } public int getX() { return this.x; } public int getY() { return ..

Java 2016. 7. 20. 19:24