T a c i t n e s s _

class DragListener extends MouseAdapter { private static final int PADDING = 10; private int mouseX; private int mouseY; private boolean resizing = false; @Override public void mouseMoved(MouseEvent e) { JFrame frame = (JFrame) e.getSource(); if (isSizeGrip(frame, e)) { setCursor(Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR)); } else { setCursor(Cursor.getDefaultCursor()); } } @Override pu..

import java.awt.*; import javax.swing.*; class Draw extends JComponent { public void paint(Graphics g) { Graphics2D g2 = (Graphics2D) g; GradientPaint gp = new GradientPaint(0,0,Color.BLUE,250,250,Color.RED); // g2.setColor(Color.MAGENTA); // g2.fillRect(0,0,150,150); g2.setPaint(gp); g2.fillRoundRect(20,20,250,250,50,50); // g2.fillRect(20,20,250,250); } } class GFrame extends JFrame { public G..

■ 서버용 import java.io.*; import java.util.*; import java.net.*; public class ServerC { private static class ScoreBoard { ArrayList scoreList = new ArrayList(); public void put(String key, String value) { boolean done = false; for (String[] score : scoreList) { if (score[0].compareToIgnoreCase(key) == 0) { score[1] = value; done = true; break; } } if (!done) scoreList.add(new String[] {key, value}..

출처 : https://kadosholy.tistory.com/125 [Java] 자바 - 소켓통신이란? 소켓(Socket) 개념과 사용방법 자바 - 소켓통신이란? 소켓(Socket) 개념과 사용방법 네트워크를 통해 데이터를 주고받을 수 있도록 지원하는 소켓(Socket) 통신에 대해서 알아보도록 하겠습니다. 목차 소켓(socket)과 소켓통신이란? kadosholy.tistory.com ■ 서버용 import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket..

public class Main { private static Scanner scanner = new Scanner(System.in); private static File cdir = new File("C:\\"); public static void main(String[] args) { while (true) { System.out.print(cdir.getPath() + ">"); String command = scanner.nextLine(); if (command.compareToIgnoreCase("exit") == 0) break; String[] split = command.split("\\s"); switch (split[0].toLowerCase()) { case "cd": if (sp..

public MainFrame() { setSize(400,300); setLocationRelativeTo(null); setTitle("회원가입/로그인"); setContentPane(panelRoot); // pack(); setDefaultCloseOperation(EXIT_ON_CLOSE); setVisible(true); }

■ FileReader / BufferdReader // 3. C:\Windows\system.ini 파일을 읽어와 모든 글자를 소문자로 바꾸어 출력해주세요 try { FileReader fr = new FileReader("C:\\Windows\\system.ini"); BufferedReader br = new BufferedReader(fr); String s; while ((s = br.readLine()) != null) { System.out.println(s.toLowerCase()); } br.close(); fr.close(); } catch (IOException e) { System.out.println(e); } // 4. C:\Windows\system.ini 파일을 읽어와 파일 ..

class GenericDeque { private final Object[] tArr, sArr; int capacity, fCur, rCur; GenericDeque() { capacity = 30; fCur = capacity/2; rCur = capacity/2; tArr = new Object[capacity]; sArr = new Object[capacity]; Arrays.fill(tArr, null); } GenericDeque(int capacity) { this.capacity = capacity; fCur = capacity/2; rCur = capacity/2; tArr = new Object[capacity]; sArr = new Object[capacity]; Arrays.fil..

public class QueueEx { private Object[] tArr; private int fCur, rCur, capacity; private boolean full; QueueEx() { fCur = rCur = 0; tArr = new Object[capacity]; } QueueEx(int capacity) { this.capacity = capacity; fCur = rCur = 0; tArr = new Object[capacity]; } public boolean offer(T tVal) { if (size() == capacity) System.out.println("데이터 가득 참"); tArr[rCur] = tVal; rCur = (rCur + 1 + capacity) % c..

btnNewfile.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (modified) { if (JOptionPane.showConfirmDialog(panelRoot, "저장하시겠습니까?", "노트패드", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) { FileDialog fileDialogOpen = new FileDialog(MainFrame.this, "파일 저장", FileDialog.SAVE); fileDialogOpen.setVisible(true); String filePath = fileDialogOpen.g..