AWT 컴포넌트

java.awt.Panel 컴포넌트

상속관계

java.lang.Object -> java.awt.Component -> java.awt.Container -> java.awt.Panel

 

예제1

import java.awt.*;

public class Round18_Ex01 {
    public static void main(String[] ar) {
        new Round18_Ex01_Sub();
    }
    
    class Round18_Ex01_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private Label lb = new Label("Test");
        public Round18_Ex01_Sub() {
            super();
            this.init();
            this.start();
            this.setSize(250, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 - dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
        }
        
        public void init() {
            BorderLayout border = new BorderLayout();
            this.setLayout(border);
            lb.setBackground(Color.yellow);
            this.add("South",lb);
        }
        
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

예제2

import java.awt.*;

public class Round18_Ex01 {
   ....
    class Round18_Ex01_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private Label lb = new Label("Test");
        private Label lb1 = new Label("Test1");
        
        public Round18_Ex01_Sub() {
            ....
        }
        
        public void init() {
            BorderLayout border = new BorderLayout();
            this.setLayout(border);
            lb.setBackground(Color.yellow);
            lb1.setBackground(Color.magenta);
            
            GridLayout grid = new GridLayout(1, 2, 5, 5);
            Panel p = new Panel();
            p.setLayout(grid);
            
            p.add(lb);
            p.add(lb1);
            this.add("South",p);
        }
        
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

예제3

import java.awt.*;

public class Round18_Ex01 {
   ....
    class Round18_Ex01_Sub extends Frame {
        ....
        public Round18_Ex01_Sub() {
            ....
        }
        public void init() {
            BorderLayout border = new BorderLayout();
            this.setLayout(border);
            lb.setBackground(Color.yellow);
            lb1.setBackground(Color.magenta);
            lb2setBackground(Color.green);
            
            GridLayout grid = new GridLayout(1, 2, 5, 5);
            Panel p = new Panel(grid);
            p.add(lb);
            
            GridLayout grid1 = new GridLayout(2, 1, 5, 5);
            Panel p1 = new Panel(grid1);
            p1.add(lb1);
            p1.add(lb2);

            p.add(p1);
            
            this.add("South",p);
        }
        ....
    }
}

AWT 전에 기억해야 할 클래스들

java.awt.Color

public void init() {
    this.setBackground(Color.magenta);
    FlowLayout flow = new FlowLayout();
    this.setLayout(flow);
    lb.setBackground(Color.black);
    lb.setForeground(Color.white);
    this.add(lb);
}

 

Color color = new Color(int red, int green, int blue);

public void init() {
    Color c1 = new Color(218, 185, 5);
    Color c2 = new Color(117, 11, 213);
    Color c3 = new Color(255, 255, 255);
    this.setBackground(c1);
    FlowLayout flow = new FlowLayout();
    this.setLayout(flow);
    lb.setBackground(c2);
    lb.setForeground(c3);
    this.add(lb);
}

java.awt.Cursor

public void init() {
    Cursor cursor = new Cursor(Cursor.HAND_CURSOR);
    Cursor cursor1 = new Cursor(Cursor.WAIT_CURSOR);
    this.setCursor(cursor);
    FlowLayout flow = new FlowLayout();
    this.setLayout(flow);
    lb.setCurosr(cursor1);
    lb.setBackground(Color.yellow);
    this.add(lb);
}

java.awt.Dimension

• 스크린의 크기
  • Dimension di = Toolkit.getDefaultToolkit().getScreenSize();
  • 폭 : di.width 또는 di.getWidth()
  • 높이: di.height 또는 di.getHeight()
• 프레임의 크기
  • Frame f = new Frame();
  • Dimension di = f.getSize();
  • 폭 : di.width 또는 di.getWidth()
  • 높이: di.height 또는 di.getHeight()
• 레이블의 크기
  • Label lb = new Label();
  • Dimension di = lb.getSize();
  • 폭 : di.width 또는 di.getWidth()
  • 높이: di.height 또는 di.getHeight()

java.awt.Font

public void init() {
    Font font = new Font("SansSerif", Font.BOLD, 20);
    FlowLayout flow = new FlowLayout();
    this.setLayout(flow);
    lb.setFont(font);
    lb.setBackground(Color.yellow);
    this.add(lb);
}

java.awt.Image

• Image 객체
  • Image image = Toolkit.getDefaultToolkit().getImage("c:\\test.gif");

public void init() {
    this.setLayout(new FlowLayout());
    lb.setBackground(Color.yellow);
    this.add(lb);
    this.setIconImage(Toolkit.getDefaultToolkit().getImage("c:\\abc.gif"));
}

java.awt.Insets

• Insets 클래스의 객체생성
  • Insets inset = new Insets(int 위쪽_여백, int 좌측_여백, int 아래쪽_여백, int 우측_여백);

java.awt.Toolkit

• 화면의 크기를 얻어내는 클래스 : Toolkit.getDefaultToolkit().getScreenSize()
• 로컬 경로 이미지를 얻어내는 클래스 : Toolkit.getDefaultToolkit().getImage("로컬경로파일")

AWT 컴포넌트

java.awt.Label

java.lang.Object -> java.awt.Component -> java.awt.Label

import java.awt.*;

public class Round18_Ex06 {
    public static void main(String[] ar) {
        new Round18_Ex06_Sub();
    }
    class Round18_Ex06_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private Label lb = new Label("최초문자(좌측정렬) -> ", Label.LEFT);
        public Round18_Ex06_Sub() {
            super();
            this.init();
            this.start();
            this.setSize(500, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 = dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            try { Thread.sleep(5000); } catch( InterruptedException e) {}
            
            String str = lb.getText().trim();
            lb.setAlignment(Label.CENTER);
            lb.setText(str + "다음정렬(중앙정렬) ->");
            
            try { Thread.sleep(5000); } catch( InterruptedException e) {}
            
            String str = lb.getText().trim();
            lb.setAlignment(Label.RIGHT);
            lb.setText(str + "다음정렬(우측정렬) ->");
        }
        
        public void init() {
            GridBagLayout gridbag = new GridBagLayout();
            GridBagConstraints gc = new GridBagConstraints();
            this.setLayout(gridbag);
            lb.setBackground(Color.yellow);
            gc.fill = GridBagConstraints.HORIZONTAL;
            gc.weightx = 1;
            gridbag.setConstraingts(lb, gc);
            this.add(lb);
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.Button

java.lang.Object -> java.awt.Component -> java.awt.Button

import java.awt.*;

public class Round18_Ex07 {
    public static void main(String[] ar) {
        new Round18_Ex07_Sub();
    }
    class Round18_Ex07_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private Button[] bt = new Button[12];
        public Round18_Ex07_Sub() {
            super();
            this.init();
            this.start();
            this.setSize(300, 400);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 = dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
        }
        
        public void init() {
            CardLayout card = new CardLayout(5, 5);
            this.setLayout(card); // 주변 둘레(가장자리) 여백 때문에 설정
            
            Panel p = new Panel(new GridLayout(4, 3, 5, 5));
            
            Font font = new Font("TimesRoman", Font.BOLD, 20);
            Font font1 = new Font("SansSerif", Font.BOLD, 20);
            
            String[] str = {"*","0","#"};
            for(int i=0; i < bt.length; i++) {
                if(i < 9) {
                    bt[i] = new Button(String.valueOf(i + 1));
                    bt[i].setFont(font);
                } else {
                    bt[i] = new Button(str[i-9]);
                    bt[i].setFont(font1);
                }
            }
            this.add("view",p);
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.Checkbox

java.lang.Object -> java.awt.Component -> java.awt.Checkbox

import java.awt.*;

public class Round18_Ex08 {
    public static void main(String[] ar) {
        new Round18_Ex08_Sub();
    }
    class Round18_Ex08_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private Label lb = new Label("좋아하는 과일을 모두 체크하세요!");
        private List<Checkbox> cbs = Arrays.asList(
            new CheckBox("사과")
            , new CheckBox("딸기", false)
            , new CheckBox("키위", true)
            , new CheckBox("포도")
        );
        
        private List<Button> bts = Arrays.asList(
            new Button("확인")
            , new Button("취소")
        );
        public Round18_Ex08_Sub() {
            super("선택");
            this.init();
            this.start();
            this.setSize(300, 400);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 = dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
        }
        
        public void init() {
            BorderLayout border = new BorderLayout();
            this.setLayout(border);
            this.add("North",lb);
            
            Panel p = new Panel(new GridLayout(2,2));
            for(Checkbox cb : cbs) {
                p.add(cb);
            }
            this.add("Center",p);
            
            Panel p1 = new Panel(new FlowLayout(FlowLayout.RIGHT));
            for(Button bt : bts) {
                p1.add(bt);
            }
            this.add("South", p1);
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.CheckboxGroup

java.lang.Object -> java.awt.CheckboxGroup

import java.awt.*;

public class Round18_Ex08 {
    public static void main(String[] ar) {
        new Round18_Ex08_Sub();
    }
    class Round18_Ex08_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private Label lb = new Label("좋아하는 과일을 모두 체크하세요!");
        privaet CheckboxGroup cg = new CheckboxGroup();
        private List<Checkbox> cbs = Arrays.asList(
            new CheckBox("사과", false, cg)
            , new CheckBox("딸기", false, cg)
            , new CheckBox("키위", true, cg)
            , new CheckBox("포도", false, cg)
        );
        
        private List<Button> bts = Arrays.asList(
            new Button("확인")
            , new Button("취소")
        );
        public Round18_Ex08_Sub() {
           ....
        }
        
        public void init() {
           ....
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.Choice

java.lang.Object -> java.awt.Component -> java.awt.Choice

import java.awt.*;

public class Round18_Ex09 {
    public static void main(String[] ar) {
        new Round18_Ex09_Sub();
    }
    class Round18_Ex09_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private List<Label> lbs = Arrays.asList(
            new Label("생년월일 : ",Label.LEFT)
            , new Label("년 ",Label.LEFT)
            , new Label("월 ",Label.LEFT)
            , new Label("일 ",Label.LEFT)
        );
        private List<Choice> choices = Arrays.asList(
            new Choice()
            , new Choice()
            , new Choice()
        );
        public Round18_Ex09_Sub() {
            super("선택");
            this.init();
            this.start();
            this.setSize(300, 400);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 = dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
            
            choices.get(0).select("1980");
            choices.get(1).select("12");
            choices.get(2).select("25");
            choices.get(2).requestFocus();
        }
        
        public void init() {
           for(int i = 2004; i >= 1970; i--) {
               choices.get(0).add(String.valueOf(i));
           }
           for(int i = 1 i <= 12; i++) {
               choices.get(1).add(String.valueOf(i));
           }
           for(int i = 1 i <= 31; i++) {
               choices.get(2).add(String.valueOf(i));
           }
           
           GridBagLayout gridbag = new GridBagLayout();
           GridBagConstraints gc = new GridBagConstraints();
           this.setLayout(gridgag);
           
           
           
           for(int i=0; i<lbs.size(); i++){
               if(i > 0){
                   gridbag.setConstraints(choices.get(i-1), gc);
                   this.add(choices.get(i-1));
               }
               gridbag.setConstraints(lbs.get(i), gc);
               this.add(lbs.get(i));
           }
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

 

java.awt.List

java.lang.Object -> java.awt.Component -> java.awt.List

import java.awt.*;

public class Round18_Ex10 {
    public static void main(String[] ar) {
        new Round18_Ex10_Sub();
    }
    class Round18_Ex10_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        private java.util.List<Button> bts = Arrays.asList(
            new Button("-->")
            , new Button("<--")
        );

        private java.util.List<List> lists = Arrays.asList(
            new List(10, true)
            , new List(10)
        );
        public Round18_Ex10_Sub() {
            super("목록 선택");
            this.init();
            this.start();
            this.setSize(300, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 = dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
                        
            lists.get(0).select(2);
            lists.get(0).select(2);
            lists.get(0).select(2);
            lists.get(0).select(2);
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
            
            String[] str = lists.get(0).getSelectedItems();
            for(int i = 0; i < str.length; i++) {
                list.get(1).add(str[i]);
            }
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
                        
            lists.get(0).deselect(2);
            lists.get(0).deselect(2);
            lists.get(0).deselect(2);
            lists.get(0).deselect(2);
        }
        
        public void init() {
           
           for(int = 0; i < 20; i++) {
               lists.get(0).add("TEST " + (i+1));
           }
           
           GridBagLayout gridbag = new GridBagLayout();
           GridBagConstraints gc = new GridBagConstraints();
           this.setLayout(gridgag);
           
           gc.insets = new Insets(0, 0, 0, 10);
           gridbag.setConstraints(lists.get(0), gc);
           this.add(lists.get(0));
           
           GridLayout grid = new GridLayout(2, 1, 0, 20);
           Panel p = new Panel(grid);
           for(Button bt : bts){
               p.add(bt);
           }
           
           gc.insets = new Insets(0, 0, 0, 0);
           gridbag.setConstraints(p, gc);
           this.add(p);
           
           gc.insets = new Insets(0, 10, 0, 0);
           gridbag.setConstraints(lists.get(1), gc);
           this.add(lists.get(1));
           
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.TextComponent

java.lang.Object -> java.awt.Component -> java.awt.TextComponent

 

java.awt.TextField

java.lang.Object -> java.awt.Component -> java.awt.TextComponent -> java.awt.TextField

import java.awt.*;

public class Round18_Ex11 {
    public static void main(String[] ar) {
        new Round18_Ex11_Sub();
    }
    class Round18_Ex11_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        private Label lb = new Label("문자열 입력 : ", Label.RIGHT);
        private TextField tf = new TextField(30);
        
        public Round18_Ex11_Sub() {
            super("문자열");
            this.init();
            this.start();
            this.setSize(300, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 = dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
                        
            String str = tf.getText().trim();
            tf.setEchoChar((char)0);
            tf.setText(str);            
        }
        
        public void init() {
           
           GridBagLayout gridbag = new GridBagLayout();
           GridBagConstraints gc = new GridBagConstraints();
           this.setLayout(gridgag);
           
           gc.fill = GridBagConstraints.HORIZONTAL;
           gc.weight = 4;
           gridbag.setConstraints(lb, gc);
           this.add(lb);
           
           gc.weightx = 6;
           gridbag.setConstraints(tf, gc);
           this.add(tf);
           
           tf.setEchoChar('*');
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.TextArea

java.lang.Object -> java.awt.Component -> java.awt.TextComponent -> java.awt.TextArea

import java.awt.*;

public class Round18_Ex12 {
    public static void main(String[] ar) {
        new Round18_Ex12_Sub();
    }
    class Round18_Ex12_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        private Label lb = new Label("5초 이내에 특정 내용의 범위를 지정하시오!");
        private Label lb1 = new Label("선택된 내용 : ", Label.RIGHT);
        private TextArea ta = new TextArea("abcdefghijk\nlmnopqrs\ntuvwxyz\n");
        private TextField tf = new TextField();
        
        public Round18_Ex12_Sub() {
            super("문자열");
            this.init();
            this.start();
            this.setSize(300, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 = dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
            String str = ta.getSelectedText().trim();
            int start = ta.getSelectionStart();
            int end = ta.getSelectionEnd();
            tf.setText(str);
            
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
            ta.replaceRange("",start, end);
            
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
            str = tf.getText().trim();
            int length = ta.getText().trim().length();
            ta.setCaretPosition(length);
            ta.append(str);
            
        }
        
        public void init() {
            BorderLayout border = new BorderLayout(5, 5);
            this.setLayout(border);
            
            this.add("North",lb);
            this.add("Center",ta);
            
            BorderLayout border1 = new BorderLayout(3, 3);
            Panel p = new Panel(border1);
            p.add("West",lb1);
            p.add("Center",tf);
            this.add("South",p);
        }
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.Dialog

java.lang.Object -> java.awt.Component -> java.awt.Container -> java.awt.Window -> java.awt.Dialog

import java.awt.*;

public class Round18_Ex13 {
    public static void main(String[] args) {
        new Round18_Ex13_Sub();
    }
    
    class Round18_Ex13_Sub extends Frame {
        
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        private Dialog dlg = new Dialog(this,"종속된 Dlg1", false);
        private Label dlglb = new Label("종속된 Dlg1 이다.", Label.CENTER);
        
        private Dialog dlg1 = new Dialog(this, "종속된 Dlg2", false);
        private Label dlg1lb = new Label("종속된 Dlg2 이다.", Label.CENTER);
        
        
        
        public Round18_Ex13_Sub() {
            super("최상위 Frame!!");
            this.init();
            this.start();
            this.setSize(300, 200);
            
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 - dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            try { Thread.sleep(5000); } catch( InterruptedException e ) {}
            
            dlg.setVisible(true);
            
            try { Thread.sleep(5000); } catch( InterruptedException e ) {}
            
            dlg.setVisible(false);
            dlg1.setVisible(true);
            
            try { Thread.sleep(5000); } catch( InterruptedException e ) {}
            
            dlg1.setVisible(false);
        }
        public void init() {
            Dimension dimen0 = Toolkit.getDefaultToolkit().getScreenSize();
            
            BorderLayout border = new BorderLayuout();
            dlg.setLayuout(border);
            dlg.add("Center",dlglb);
            dlg.setSize(150, 120);
            Dimension dimen2 = dlg.getSize();
            int xpos1 = (int)(dimen0.getWidth()/2 - dimen2.getWidth()/2);
            int ypos1 = (int)(dimen0.getHeight()/2 - dimen2.getHeight()/2);
            dlg.setLocation(xpos1, ypos1);
            
            BorderLayout border1 = new BorderLayout();
            dlg1.setLayout(border1);
            dlg1.add("Center",dlg1lb);
            dlg1.setSize(150,120);
            Dimension dimen3 = dlg1.getSize();
            int xpos2 = (int)(dimen0.getWidth()/2 - dimen3.getWidth()/2);
            int ypos2 = (int)(dimen0.getHeight()/2 - dimen3.getHeight()/2);
            dlg.setLocation(xpos2, ypos2);
        }
        public void start() {
        
        }
    }

}

java.awt.FileDialog

java.lang.Object -> java.awt.Component -> java.awt.Container -> java.awt.Window -> java.awt.Dialog -> java.awt.FileDialog

import java.awt.*;

public class Round18_Ex14 {
    public static void main(String[] args) {
        new Round18_Ex14_Sub();
    }
    
    class Round18_Ex14_Sub extends Frame {
        
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        
        private Label lb = new Label("directory = ");
        private Label lb1 = new Label("file = ");
        
        private FileDialog fdlg = new FileDialog(this, "내파일열기", FileDialog.LOAD);
        
        
        
        
        public Round18_Ex14_Sub() {
            super("파일 다이얼로그");
            this.init();
            this.start();
            this.setSize(300, 200);
            
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 - dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            try { Thread.sleep(5000); } catch( InterruptedException e ) {}
            
            fdlg.setVisible(true);
            String dir = fdlg.getDirectory();
            String file = fdlg.getFile();
            lb.setText(lb.getText().trim() + dir);
            lb1.setText(lb1.getText().trim() + file);
        }
        public void init() {
            GridBagLayout gridbag = new GridBagLayout();
            GridBagConstraints gc = new GridBagConstraints();
            this.setLayout(gridbag);
            
            lb.setBackground(Color.yellow);
            lb1.setBackground(Color.yellow);
            
            gc.weightx = 1;
            gc.fill = GridBagConstrants.HORIZONTAL;
            gc.gridwidth = GridBagConstrants.REMAINDER;
            gc.insets = new Insets(0, 0, 10, 0);
            gridgag.setConstrants(lb, gc);
            this.add(lb);
            
            gridbag.setConstrants(lb1, gc);
            this.add(lb1);
        }
        public void start() {
        
        }
    }

}

java.awt.MenuBar

java.lang.Object -> java.awt.Component -> java.awt.MenuBar

 

java.awt.Menu

java.lang.Object -> java.awt.Component -> java.awt.MenuItem -> java.awt.Menu

import java.awt.*;

public class Round18_Ex15 {
    public static void main(String[] ar) {
        new Round18_Ex15_Sub();
    }
    
    class Round18_Ex015Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        private MenuBar mb = new MenuBar();
        private List<Menu> ms = Arrays.asList(
            new Menu("파일")
            , new Menu("편집")
            , new Menu("보기")
            , new Menu("도움말")
        );
        
        
        public Round18_Ex15_Sub() {
            super("메뉴 만들기");
            this.init();
            this.start();
            this.setSize(250, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 - dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
        }
        
        public void init() {
            this.setMenuBar(mb);
            for(Menu m : ms) {
                mb.add(m);
            }
        }
        
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.MenuItem

java.lang.Object -> java.awt.Component -> java.awt.MenuItem

java.awt.CheckboxMenuItem

java.lang.Object -> java.awt.Component -> java.awt.MenuItem -> java.awt.CheckboxMenuItem

import java.awt.*;

public class Round18_Ex15 {
    public static void main(String[] ar) {
        new Round18_Ex15_Sub();
    }
    
    class Round18_Ex015Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        private MenuBar mb = new MenuBar();
        private List<Menu> ms = Arrays.asList(
            new Menu("파일")
            , new Menu("편집")
            , new Menu("보기")
            , new Menu("도움말")
        );
        
        private List<MenuItem> file = Arrays.asList(
            new MenuItem("새파일")
            ,new MenuItem("열기")
            ,new MenuItem("저장")
            ,new MenuItem("다른 이름으로 저장")
            ,new MenuItem("종료")
        );
        private List<MenuItem> edit = Arrays.asList(
            new MenuItem("찾기")
            ,new MenuItem("바꾸기")
            ,new MenuItem("이동")
        );
        private List<Menu> view = Arrays.asList(
            new Menu("모양")
            ,new Menu("도구모음")
        );
        
        private List<MenuItem> vmo = Arrays.asList(
            new MenuItem("기본모양")
            ,new MenuItem("웹모양")
            ,new MenuItem("인쇄모양")
        );
        
        private List<CheckboxMenuItem> vtool = Arrays.asList(
            new CheckboxMenuItem("표준", true)
            , new CheckboxMenuItem("서식", true)
            , new CheckboxMenuItem("검토", false)
        );
        
        private List<MenuItem> help = Arrays.asList(
            new MenuItem("버젼정보")
        );
        
        
        public Round18_Ex15_Sub() {
            super("메뉴 만들기");
            this.init();
            this.start();
            this.setSize(250, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 - dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
        }
        
        public void init() {
            this.setMenuBar(mb);
            for(Menu m : ms) {
                mb.add(m);
            }
            
            //파일
            for(MenuItem mi: file) {
                ms.get(0).add(mi);
            }
            
            //편집
            for(MenuItem mi: edit) {
                ms.get(1).add(mi);
            }
            
            //보기
            for(Menu m: view) {
                ms.get(2).add(m);
            }
            
            //도움말
            for(MenuItem mi: help){
                ms.get(3).add(mi);
            }
            
            //모양
            for(MenuItem mi: vmo){
                view.get(0).add(mi);
            }
            
            //도구모음
            for(CheckboxMenuItem cmi: vtool){
                view.get(1).add(cmi);
            }
            
            
        }
        
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.ScrollPane

java.lang.Object -> java.awt.Component -> java.awt.Container -> java.awt.ScrollPane

import java.awt.*;

public class Round18_Ex16 {
    public static void main(String[] ar) {
        new Round18_Ex16_Sub();
    }
    
    class Round18_Ex16_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        private Label lb = new Label("많은 버튼들 추가...");
        private Button[] bt = new Button[50];
        private Button bt1 = new Button("확인");
        private Button bt2 = new Button("취소");
        public Round18_Ex16_Sub() {
            super("Scroll Pane!");
            this.init();
            this.start();
            this.setSize(300, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 - dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
        }
        
        public void init() {
            BorderLayout border = new BorderLayout(5, 5);
            this.setLayout(border);
            this.add("North",lb);
            
            GridLayout grid = new GridLayout(10, 5, 2, 2);
            Panel p = new Panel(grid);
            for(int i=0; i < bt.length; i++) {
                bt[i] = new Button("TEST " + i);
                p.add(bt[i]);
            }
            
            //this.add("Center",p);
            
            ScrollPane sp = new ScrollPane();
            sp.add(p);
            this.add("Center",sp);
            
            FlowLayout flow1 = new FlowLayout(FlowLayout.RIGHT);
            Pane p1 = new Panel(flow1);
            p1.add(bt1);
            p1.add(bt2);
            this.add("South", p1);
        }
        
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

java.awt.PopupMenu

java.lang.Object -> java.awt.Component -> java.awt.MenuItem ->java.awt.Menu -> java.awt.PopupMenu

import java.awt.*;

public class Round18_Ex17 {
    public static void main(String[] ar) {
        new Round18_Ex17_Sub();
    }
    
    class Round18_Ex17_Sub extends Frame {
        private Dimension dimen, dimen1;
        private int xpos, ypos;
        
        private PopupMenu pm = new PopupMenu("5초후 나타난다.");
        
        private List<MenuItem> mis = Arrays.asList(
            new MenuItem("복사")
            , new MenuItem("잘라내기")
            , new MenuItem("붙여넣기")
        );
        
        private Menu align = new Menu("정렬");
        private List<CheckboxMenuItem> aligns = Arrays.asList(
            new CheckboxMenuItem("크기순", false)
            , new CheckboxMenuItem("이름순", false)
            , new CheckboxMenuItem("자동정렬", true)
        );

        public Round18_Ex17_Sub() {
            super();
            this.init();
            this.start();
            this.setSize(250, 200);
            dimen = Toolkit.getDefaultToolkit().getScreenSize();
            dimen1 = this.getSize();
            xpos = (int)(dimen.getWidth()/2 - dimen1.getWidth()/2);
            ypos = (int)(dimen.getHeight()/2 - dimen1.getHeight()/2);
            this.setLocation(xpos, ypos);
            this.setVisible(true);
            
            try { Thread.sleep(5000); } catch(InterruptedException e) {}
            
            pm.show(ta, 50, 0);
        }
        
        public void init() {
            BorderLayout border = new BorderLayout();
            this.setLayout(border);
            
            this.add("Center",ta);
            
            for(MenuItem mi : mis) {
                pm.add(mi);
            }
            pm.addSeparator();
            for(int i=0; i< aligns.size(); i++) { 
                align.add(aligns.get(i));
                if(i == 1 ) {
                    align.addSeparator();
                }
            }
            pm.add(align);
            ta.add(pm);
        }
        
        public void start() {
            // Event나 쓰레드 처리할 부분
        }
    }
}

 

과제

과제1. 자바 폼을 이용하여 로그인 폼 만들기

 

과제2. 자바 폼을 이용하여 계산기 폼 만들기