HISTORY

package JavaEventMdel;

import javax.swing.*;
import java.awt.event.ActionListener;
import javax.swing.border.EtchedBorder;
import java.awt.Container;
import java.awt.BorderLayout;

import java.util.*;

//클래스 그 자체의 선언은 추가적인 인터페이스를 구현하는  것으로 변한다.
public class EventCreator2 extends JFrame implements ActionListener {
 JButton btnBook;
 JButton btnExit;
 
 public EventCreator2() throws Exception {
  try {
   System.out.println("EventCreator2 executing");
   setBounds(150,200,500,250);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   
   BorderLayout border = new BorderLayout();
   Container content = getContentPane();
   content.setLayout(border);
   btnBook = new JButton("Book");
   btnExit = new JButton("Exit");

   btnBook.addActionListener(this);      //다른 클래스를 사용하는 대신에 이 클래스를 이용한다.
   btnExit.addActionListener(this);
   
   JPanel bottomPanel = new JPanel();
   bottomPanel.add(btnBook);
   bottomPanel.add(btnExit);
   content.add(bottomPanel, BorderLayout.SOUTH);
   setVisible(true);
  } catch(Exception e) {
   System.out.println("Exception thrown " + e);
  }
 }
 
//actionPerformed() 메소드
 public void actionPerformed(java.awt.event.ActionEvent ae) {
  if(ae.getActionCommand().equals("Exit")) {
   System.out.println("Exit was clicked2");
  }
  //티켓 예약
  if(ae.getActionCommand().equals("Book")) {
   System.out.println("Book was clicked2");
  }
 }
 
 public static void main(String[] args) {
  try {
   EventCreator2 mainWindow = new EventCreator2();
  } catch(Exception e) {
   System.out.println("Exception in main " + e);
  }
 }
}

package TestLayout;

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

public class TestBorderLayout extends Frame {
 TextField tfNorth;
 TextField tfCenter;
 TextField tfSouth;
 TextField tfEast;
 TextField tfWest;
// Frame클래스의 기본 관리자 BorderLayout 
 public TestBorderLayout() {    
  tfNorth = new TextField("North");   //패널에 텍스트 필드 추가
  tfCenter = new TextField("Center");
  tfSouth = new TextField("South");
  tfEast = new TextField("East");
  tfWest = new TextField("West");
 
  Panel pNorth = new Panel();     //각각의 텍스트 필드를 위한 패널 생성
  pNorth.add(tfNorth);            //패널에 텍스트 필드를 추가
 
  Panel pCenter = new Panel();
  pCenter.setBackground(Color.darkGray);   //영역에 배경색 지정
  pCenter.add(tfCenter);
 
  Panel pSouth = new Panel();
  pSouth.add(tfSouth);
 
  Panel pEast = new Panel();
  pEast.setBackground(Color.gray);
  pEast.add(tfEast);
 
  Panel pWest = new Panel();
  pWest.setBackground(Color.gray);
  pWest.add(tfWest);
 
  add(pNorth, BorderLayout.NORTH);      //프레임에 패널 장착~
  add(pCenter, BorderLayout.CENTER);
  add(pSouth, BorderLayout.SOUTH);
  add(pEast, BorderLayout.EAST);
  add(pWest, BorderLayout.WEST);
 
  addWindowListener(new WinCloser());
  setTitle("Using a BorderLayout");
  setBounds(100,100,300,300);
  setVisible(true);
 }
 
 public static void main(String[] args) {
  TestBorderLayout tbl = new TestBorderLayout();
 }
}

class WinCloser extends WindowAdapter {
 public void windowClosing(WindowEvent e) {
  System.exit(0);
 }
}

package TestLayout;

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

public class TestFlowLayout extends Frame {
 TextField tfFirst;
 TextField tfSecond;
 TextField tfThird;
 TextField tfForth;
 TextField tfFifth;
 
 public TestFlowLayout() {
  setLayout(new FlowLayout());   
  //Frame의 기본 레이아웃이 BorderLayout이기 때문에 레이아웃 관리자를 지정해주어야 한다.
  tfFirst = new TextField("First");
  tfSecond = new TextField("Second");
  tfThird = new TextField("Third");
  tfForth = new TextField("Forth");
  tfFifth = new TextField("Fifth");
  //레이아웃 관리자가 선언된 다음 FlowLayout클래스는 컴포넌트 화면 배치를 처리한다.
  //왼쪽에서 오른쪽으로 펼쳐지면서 Frame에 객체를 위치시킬수 있다.
 
  add(tfFirst);
  add(tfSecond);
  add(tfThird);
  add(tfForth);
  add(tfFifth);
 
  addWindowListener(new WinCloser());
  setTitle("Using a BorderLayout");
  setBounds(100,100,300,300);
  setVisible(true);
 }
 
 public static void main(String[] args) {
  TestFlowLayout tfl = new TestFlowLayout();
 }
}

class WinCloser extends WindowAdapter {
 public void windowClosing(WindowEvent e) {
  System.exit(0);
 }
}

package TestLayout;

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

public class TestGridBagLayout extends Frame {
 TextField tfFirst;
 TextField tfSecond;
 TextField tfThird;
 TextField tfForth;
 TextField tfFifth;
 
 GridBagConstraints gbc;    //레이아웃에 사용되는 선택항목을 지정할 수 있는 객체
 Button saveButton;
 Label answerLabel;
 
 public TestGridBagLayout() {
  Insets i = new Insets(0,0,0,0);
 
  saveButton = new Button("Save");
  answerLabel = new Label("Answer");
 
  tfFirst = new TextField("First");
  tfSecond = new TextField("Second");
  tfThird = new TextField("Third");
  tfForth = new TextField("Forth");
  tfFifth = new TextField("Fifth");
 
  GridBagLayout gbl = new GridBagLayout(); //후에 사용하기 위한 이름 부여
  setLayout(gbl);                          //레이아웃 설정
 
  //프레임에 놓인 모든 객체를 강제적으로 지정
  gbc = new GridBagConstraints(0,0,1,1,0.0,0.0,
    GridBagConstraints.EAST,GridBagConstraints.NONE, i,0,0);
  gbl.setConstraints(answerLabel, gbc);
 
  gbc = new GridBagConstraints(1,0,1,1,0.0,0.0,
    GridBagConstraints.WEST,GridBagConstraints.NONE, i,0,0);
  gbl.setConstraints(tfFirst, gbc);
 
  gbc = new GridBagConstraints(1,11,1,1,0.0,0.0,
    GridBagConstraints.WEST,GridBagConstraints.NONE, i,0,0);
  gbl.setConstraints(tfSecond, gbc);
 
  gbc = new GridBagConstraints(1,8,1,1,0.0,0.0,
    GridBagConstraints.WEST,GridBagConstraints.NONE, i,0,0);
  gbl.setConstraints(tfThird, gbc);
 
  gbc = new GridBagConstraints(2,0,1,1,0.0,0.0,
    GridBagConstraints.WEST,GridBagConstraints.NONE, i,0,0);
  gbl.setConstraints(tfForth, gbc);
 
  gbc = new GridBagConstraints(2,1,1,1,0.0,0.0,
    GridBagConstraints.WEST,GridBagConstraints.NONE, i,0,0);
  gbl.setConstraints(tfFifth, gbc);
 
  gbc = new GridBagConstraints(8,1,1,1,0.0,0.0,
    GridBagConstraints.WEST,GridBagConstraints.NONE, i,0,0);
  gbl.setConstraints(saveButton, gbc);
 
  add(tfFirst);         //프레임에 각 컴포넌트 추가
  add(tfSecond);
  add(tfThird);
  add(tfForth);
  add(tfFifth);
  add(answerLabel);
  add(saveButton);
 
  addWindowListener(new WinCloser());
  setTitle("Using a BorderLayout");
  setBounds(100,100,300,300);
  setVisible(true);
 }
 
 public static void main(String[] args) {
  TestGridBagLayout tgbl = new TestGridBagLayout();
 }
}