아삭의 열혈 프로그래밍

words.txt

class Rectangle <T extends Number>
{
 T x;
 T y;
 T w;
 T h;
 
 void setX(T x) { this.x = x; }
 void setY(T y) { this.y = y; }
 void setW(T w) { this.w = w; }
 void setH(T h) { this.h = h; }
 T getX() { return x; }
 T getY() { return y; }
 T getW() { return w; }
 T getH() { return h; }
 
 Number calcArea()
 {
  if(w instanceof Integer)
   return w.intValue() * h.intValue();
  else
   return w.doubleValue()*h.doubleValue();
 }
}

public class Test {
 public static void main(String[] args) {
  Rectangle<Integer> r1 = new Rectangle<>();
  Rectangle<Double> r2 = new Rectangle<>();
  
  r1.setH(100);
  r1.setW(200);
  
  r2.setW(123.45);
  r2.setH(456.78);
  
  System.out.println(r1.calcArea());
  System.out.println(r2.calcArea());
  
  
 }
}

import java.util.Arrays;
import java.util.Random;
import java.util.Scanner;

public class MyFrame {
 public static void main(String[] args) {
  int[] arr = new int[6];
  Random r = new Random();
  
  long t1 = System.currentTimeMillis();
  
  for(int i=0; i<6; i++)
  {
   int num;
   boolean chk;
   
   do {
    chk = false;
    num = r.nextInt(45) + 1;
    for(int j=0; j<i; j++)
    {
     if(arr[j] == num)
      chk = true;
    }
   } while(chk);
   
   arr[i] = num;
  }
  
  Arrays.sort(arr);
  
  for(int i: arr)
   System.out.print(" "+i);
  System.out.println();
   
  Thread.sleep(1000);
  long t2 = System.currentTimeMillis();
  
  System.out.println("총 수행시간은 " + (t2-t1) + "ms");
  
 }
}

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

class MyPanel extends JPanel implements ActionListener, ListSelectionListener, ChangeListener
{
 String[] drinks = {"콜라", "사이다", "환타", "마운틴듀", "레드불"};
 JComboBox combo;
 JList list;
 JSpinner spin;
 
 public MyPanel() {
  combo = new JComboBox(drinks);
  list = new JList(drinks);
  SpinnerListModel model = new SpinnerListModel(drinks);
  spin = new JSpinner(model);
  list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  combo.setSelectedIndex(0);
  list.setSelectedIndex(0);
  combo.addActionListener(this);
  list.addListSelectionListener(this);
  spin.addChangeListener(this);
  
  add(combo);
  add(list);
  add(spin);
 }

 @Override
 public void valueChanged(ListSelectionEvent e) {
  // TODO Auto-generated method stub
  int num = list.getSelectedIndex(); // 리스트에서 인덱스 얻어옴
  combo.setSelectedIndex(num); // 콤보박스에 인덱스 설정
  spin.setValue(list.getSelectedValue());
 }

 @Override
 public void actionPerformed(ActionEvent e) {
  // TODO Auto-generated method stub
  int num = combo.getSelectedIndex(); // 콤보박스에서 인덱스 얻어옴
  list.setSelectedIndex(num); // 리스트에 인덱스 설정
  spin.setValue(combo.getSelectedItem());
 }

 @Override
 public void stateChanged(ChangeEvent e) {
  // TODO Auto-generated method stub
  list.setSelectedValue(spin.getValue(), false);
  combo.setSelectedItem(spin.getValue());
 }
 
 
}

public class MyFrame extends JFrame {
 public MyFrame() {
  setSize(300, 300);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  
  add(new MyPanel());
  
  pack();
  setVisible(true);
 }

 public static void main(String[] args) {
  MyFrame t = new MyFrame();
 }

}

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

class Rectangle {
 int x, y, w, h;
 Color c;
}

class MyPanel extends JPanel
{
 Rectangle[] array = new Rectangle[100];
 int index = 0;

 public MyPanel() {
  addMouseListener(new MouseAdapter() {
   public void mousePressed(MouseEvent e) {
    if(index > 100)
     return;
    array[index] = new Rectangle();
    array[index].x = e.getX();
    array[index].y = e.getY();
    array[index].w = 20;
    array[index].h = 20;
    if(e.isControlDown())
     array[index].c = new Color(255, 0, 0);
    else if(e.isShiftDown())
     array[index].c = new Color(0, 255, 0);
    else if(e.isAltDown())
     array[index].c = new Color(0, 0, 255);
    else
     array[index].c = new Color(0, 0, 0);
    
    System.out.println(array[index].x + " " + array[index].y + " " + array[index].c);

    index++;
    repaint();
   }
  });
 }

 public void paintComponent(Graphics g)
 {
  super.paintComponent(g);
  for (Rectangle r : array)
  {
   if(r != null)
   {
    g.setColor(r.c);
    g.fillRect(r.x, r.y, r.w, r.h);
   }
  }
 }
}

public class MyFrame extends JFrame {
 public MyFrame() {
  setSize(300, 300);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  
  add(new MyPanel());
  
  setVisible(true);
 }

 public static void main(String[] args) {
  MyFrame t = new MyFrame();
 }

}

C_반복문_과제.docx

mysql-5.5.27-win32.part1.rar

mysql-5.5.27-win32.part2.rar

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