[6주차 과제] JAVA: 1~5단계 만들기, 계산기 만들기

public class Test1_1 {

public static void main(String[] args) {

// 1단계

Frame f = new Frame();

f.setSize(300, 200);

f.setVisible(true);

}

}

 * 위의 기본셋팅을 가지고 1~5단계로 창닫기가 가능하도록 구현하라!

 

1. 1단계

public class Test1_1 {

public static void main(String[] args) {

// 1단계

Frame f = new Frame();

f.setSize(300, 200);

f.setVisible(true);

Iframe f1 = new Iframe();

f.addWindowListener(f1);

}

}

class Iframe extends Frame implements WindowListener{

@Override

public void windowOpened(WindowEvent e) {

// TODO Auto-generated method stub

}

@Override

public void windowClosing(WindowEvent e) {

System.exit(0);

}

@Override

public void windowClosed(WindowEvent e) {

// TODO Auto-generated method stub

}

@Override

public void windowIconified(WindowEvent e) {

// TODO Auto-generated method stub

}

@Override

public void windowDeiconified(WindowEvent e) {

// TODO Auto-generated method stub

}

@Override

public void windowActivated(WindowEvent e) {

// TODO Auto-generated method stub

}

@Override

public void windowDeactivated(WindowEvent e) {

// TODO Auto-generated method stub

}

}

 

2. 2단계

public class Test1_2 {

public static void main(String[] args) {

// 2단계

Frame f = new Frame();

f.setSize(300, 200);

f.setVisible(true);

WinAdapter wa = new WinAdapter();

f.addWindowListener(wa);

}

}

class WinAdapter extends WindowAdapter{

@Override

public void windowClosing(WindowEvent e) {

System.exit(0);

}

}

 

3. 3단계

public class Test_Stage3 extends Frame {
 public static void main(String[] args) {
  // 3단계 : 내부 클래스 사용
  Frame f = new Frame();
  f.setSize(300, 200);
  f.setVisible(true);
  
  Test_Stage3 outer = new Test_Stage3();
  Test_Stage3.InnerWinAdapter inner = outer.new InnerWinAdapter();
  
  f.addWindowListener(inner);
 }

 class InnerWinAdapter extends WindowAdapter {

  @Override
  public void windowClosing(WindowEvent e) {
   System.exit(0);
  }
}
}

 

 

4. 4단계

public class Test_Stage4 extends Frame {

 public static void main(String[] args) {
  // 4단계 : 내부 익명 클래스 사용
  Frame f = new Frame();
  f.setSize(300, 200);
  f.setVisible(true);  
  
  WindowAdapter wa = new WindowAdapter() {
   @Override
   public void windowClosing(WindowEvent e) {
    System.exit(0);
   }
  };
  f.addWindowListener(wa);
 }
}

 

5. 5단계

public class Test1_5 {

public static void main(String[] args) {

// 5단계

Frame f = new Frame();

f.setSize(300, 200);

f.setVisible(true);

f.addWindowListener(new WindowAdapter() {

@Override

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

}

}

 

☆ 계산기 만들기 

public class Test2 extends Frame implements ActionListener {

TextArea calc;

Button a0;

Button a1;

Button a2;

Button a3;

Button a4;

Button a5;

Button a6;

Button a7;

Button a8;

Button a9;

Button a10;

Button a11;

Button a12;

Button a13;

Button a14;

Button a15;

Button a16;

Button a17;

Button a18;

Button a19;

Button a20;

Button a21;

Button a22;

Button a23;

Button a24;

Button a25;

Button a26;

Button a27;

Button a28;

Button a29;

public static void main(String[] args) {

// 주말숙제(2) : 계산기 만들기

// 통째로 : border 레이아웃

// 위쪽 : north에 텍스트필드 넣기

// center : 그리드 레이아웃해서 버튼 넣기

// 기간 : 월요일까지

Test2 ex = new Test2("KKC의 계산기");

ex.setSize(300,400);

ex.setVisible(true);

ex.addWindowListener(new WindowAdapter() {

@Override

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

}

Test2(String title){

super(title);

calc = new TextArea(3, 35);

a0 = new Button("MC");

a1 = new Button("MR");

a2 = new Button("MS");

a3 = new Button("M+");

a4 = new Button("M-");

a5 = new Button("<-");

a6 = new Button("CE");

a7 = new Button("C");

a8 = new Button("");

a9 = new Button("");

a10 = new Button("7");

a11 = new Button("8");

a12 = new Button("9");

a13 = new Button("/");

a14 = new Button("%");

a15 = new Button("4");

a16 = new Button("5");

a17 = new Button("6");

a18 = new Button("*");

a19 = new Button("1/x");

a20 = new Button("1");

a21 = new Button("2");

a22 = new Button("3");

a23 = new Button("-");

a24 = new Button("");

a25 = new Button("0");

a26 = new Button("");

a27 = new Button(".");

a28 = new Button("+");

a29 = new Button("=");

a0.addActionListener(this);

a1.addActionListener(this);

a2.addActionListener(this);

a3.addActionListener(this);

a4.addActionListener(this);

a5.addActionListener(this);

a6.addActionListener(this);

a7.addActionListener(this);

a8.addActionListener(this);

a9.addActionListener(this);

a10.addActionListener(this);

a11.addActionListener(this);

a12.addActionListener(this);

a13.addActionListener(this);

a14.addActionListener(this);

a15.addActionListener(this);

a16.addActionListener(this);

a17.addActionListener(this);

a18.addActionListener(this);

a19.addActionListener(this);

a20.addActionListener(this);

a21.addActionListener(this);

a22.addActionListener(this);

a23.addActionListener(this);

a24.addActionListener(this);

a25.addActionListener(this);

a26.addActionListener(this);

a27.addActionListener(this);

a28.addActionListener(this);

a29.addActionListener(this);

setLayout(new BorderLayout());

Panel p1 = new Panel();

Panel p2 = new Panel();

p1.add(calc);

p2.add(a0);

p2.add(a1);

p2.add(a2);

p2.add(a3);

p2.add(a4);

p2.add(a5);

p2.add(a6);

p2.add(a7);

p2.add(a8);

p2.add(a9);

p2.add(a10);

p2.add(a11);

p2.add(a12);

p2.add(a13);

p2.add(a14);

p2.add(a15);

p2.add(a16);

p2.add(a17);

p2.add(a18);

p2.add(a19);

p2.add(a20);

p2.add(a21);

p2.add(a22);

p2.add(a23);

p2.add(a24);

p2.add(a25);

p2.add(a26);

p2.add(a27);

p2.add(a28);

p2.add(a29);

add(p1,BorderLayout.NORTH);

add(p2,BorderLayout.CENTER);

p2.setLayout(new GridLayout(6,5));

}

@Override

public void actionPerformed(ActionEvent e) {

calc.setText(e.getActionCommand());

}

}