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스윙이란?
자바에서 GUI(Graphic User Interface)를 구현하기 위해 JDK에서 기본적으로 제공하는 개발 툴킷으로 선 마이크로시스템즈의 자바 기반 클래스의 일부이다.
스윙은 기존에 발표되었던 AWT(Abstract Window Toolkit)가 OS(Operating System) 및 윈도 시스템의 자원을 그대로 제공하기 때문에 자바에서 지향하는 "Write Once, Run Everywhere(WORE)"를 구현하기 위해 각종 시스템에서 공통적으로 제공하는 버튼, 대화창 등만을 구현하고 표나 트리 등의 좀 더 복잡하고 다양한 그래픽 컴포넌트를 사용할 수 없는 단점을 보완하기 위하여 JDK 1.2 버전부터 사용되었다.
● Frame, JFrame으로 창띄우기
- > jframe은 java swing 클래스의 일부이며 구현되는 하나의 창
- >Frame(AWT)은 운영체제에 의존적이므로 OS환경에 따라 다르게 구현
JFrame은 Frame을 운영체제에 도움을 받지 않고 구현.
-Frame
package day04;
import java.awt.Frame;
public class AwtTest {
public static void main(String[] args) {
Frame frm = new Frame();
frm.setVisible(true);
frm.setSize(400,400);
}
}-JFrame
package day04;
import java.awt.Frame;
public class AwtTest {
public static void main(String[] args) {
Frame frm = new Frame();
frm.setVisible(true);
frm.setSize(400,400);
}
}-MySwing01
package day04;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class MySwing01 extends JFrame {
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MySwing01 frame = new MySwing01();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MySwing01(){
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lbl = new JLabel("GoodMorning");
lbl.setBounds(62, 28, 86, 15);
getContentPane().add(lbl);
JButton btn = new JButton("Click");
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btn.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
//System.out.println("myclick");
lbl.setText("Good Evening");
}
});
btn.setBounds(272, 24, 101, 23);
contentPane.add(btn);
}
}-MySwing02
package day04;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class MySwing02 extends JFrame {
private JPanel contentPane;
private JTextField tf;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MySwing02 frame = new MySwing02();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MySwing02() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
tf = new JTextField();
tf.setText("100");
tf.setBounds(35, 56, 116, 21);
contentPane.add(tf);
tf.setColumns(10);
JButton btn = new JButton("increase");
btn.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
String a = tf.getText();
int aa = Integer.parseInt(a);
aa++;
tf.setText(Integer.toString(aa));
}
});
btn.setBounds(241, 55, 97, 23);
contentPane.add(btn);
}
}-MySwing03
package day04;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class MySwing03 extends JFrame {
private JPanel contentPane;
private JTextField tfA;
private JTextField tfC;
private JTextField tfB;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MySwing03 frame = new MySwing03();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MySwing03() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
tfA = new JTextField();
tfA.setBounds(23, 47, 84, 21);
contentPane.add(tfA);
tfA.setColumns(10);
tfC = new JTextField();
tfC.setColumns(10);
tfC.setBounds(338, 47, 84, 21);
contentPane.add(tfC);
tfB = new JTextField();
tfB.setColumns(10);
tfB.setBounds(154, 47, 84, 21);
contentPane.add(tfB);
JLabel lbl = new JLabel("*");
lbl.setBounds(126, 50, 29, 15);
contentPane.add(lbl);
JButton btn = new JButton("=");
btn.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
myclick();
}
});
btn.setBounds(268, 47, 43, 21);
contentPane.add(btn);
}
public void myclick() {
String a = tfA.getText();
String b = tfB.getText();
int aa = Integer.parseInt(a);
int bb = Integer.parseInt(b);
int sum = aa+bb;
tfC.setText(sum+"");
}
}-MySwing04
package day04;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class MySwing04 extends JFrame {
private JPanel contentPane;
JLabel lbl1;
JLabel lbl2;
JLabel lbl3;
JLabel lbl4;
JLabel lbl5;
JLabel lbl6;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MySwing04 frame = new MySwing04();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MySwing04() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
lbl1 = new JLabel("__");
lbl1.setBounds(27, 32, 24, 15);
contentPane.add(lbl1);
lbl2 = new JLabel("__");
lbl2.setBounds(63, 32, 24, 15);
contentPane.add(lbl2);
lbl3 = new JLabel("__");
lbl3.setBounds(99, 32, 24, 15);
contentPane.add(lbl3);
lbl4 = new JLabel("__");
lbl4.setBounds(135, 32, 24, 15);
contentPane.add(lbl4);
lbl5 = new JLabel("__");
lbl5.setBounds(182, 32, 24, 15);
contentPane.add(lbl5);
lbl6 = new JLabel("__");
lbl6.setBounds(218, 32, 24, 15);
contentPane.add(lbl6);
JButton btn = new JButton("로또생성하기");
btn.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
myclick();
}
});
btn.setBounds(27, 61, 215, 23);
contentPane.add(btn);
}
public void myclick() {
int[] arr45 = {
1,2,3,4,5, 6,7,8,9,10,
11,12,13,14,15, 16,17,18,19,20,
21,22,23,24,25, 26,27,28,29,30,
31,32,33,34,35, 36,37,38,39,40,
41,42,43,44,45
};
for(int i=0;i<1000;i++) {
int rnd = (int)(Math.random()*45);
int a = arr45[rnd];
int b = arr45[0];
arr45[0]=a;
arr45[rnd]=b;
}
lbl1.setText(arr45[0]+"");
lbl2.setText(arr45[1]+"");
lbl3.setText(arr45[2]+"");
lbl4.setText(arr45[3]+"");
lbl5.setText(arr45[4]+"");
lbl6.setText(arr45[5]+"");
}
}-MySwing05
package day04;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class MySwing05 extends JFrame {
private JPanel contentPane;
private JTextField tf__mine1;
private JTextField tf__com;
private JTextField tf__result;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MySwing05 frame = new MySwing05();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MySwing05() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lbl_mine = new JLabel("나 :");
lbl_mine.setBounds(27, 32, 62, 15);
contentPane.add(lbl_mine);
JLabel lbl_com = new JLabel("com :");
lbl_com.setBounds(27, 65, 62, 15);
contentPane.add(lbl_com);
JLabel lbl_result = new JLabel("결과 :");
lbl_result.setBounds(27, 107, 62, 15);
contentPane.add(lbl_result);
tf__mine1 = new JTextField();
tf__mine1.setBounds(191, 29, 116, 21);
contentPane.add(tf__mine1);
tf__mine1.setColumns(10);
tf__com = new JTextField();
tf__com.setColumns(10);
tf__com.setBounds(191, 62, 116, 21);
contentPane.add(tf__com);
tf__result = new JTextField();
tf__result.setColumns(10);
tf__result.setBounds(191, 104, 116, 21);
contentPane.add(tf__result);
JButton btn = new JButton("게임하기");
btn.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
myclick();
}
});
btn.setBounds(27, 145, 280, 23);
contentPane.add(btn);
}
public void myclick() {
String a = tf__mine1.getText();
double b = Math.random();
String com = "";
if(b<0.5) {
com ="홀";
}else {
com ="짝";
}
tf__com.setText(com);
if(com.equals(a)) {
tf__result.setText("이겼다");
}else {
tf__result.setText("졌다");
}
}
}-MySwing06
package day04;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.SwingConstants;
public class MySwing06 extends JFrame {
private JPanel contentPane;
private JTextField tf;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MySwing06 frame = new MySwing06();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MySwing06() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
tf = new JTextField();
tf.setHorizontalAlignment(SwingConstants.RIGHT);
tf.setBounds(12, 38, 171, 21);
contentPane.add(tf);
tf.setColumns(10);
JButton btn1 = new JButton("1");
btn1.setBounds(12, 69, 53, 37);
contentPane.add(btn1);
JButton btn2 = new JButton("2");
btn2.setBounds(77, 69, 49, 37);
contentPane.add(btn2);
JButton btn3 = new JButton("3");
btn3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btn3.setBounds(127, 69, 56, 37);
contentPane.add(btn3);
JButton bt4 = new JButton("4");
bt4.setBounds(12, 118, 64, 33);
contentPane.add(bt4);
JButton btn5 = new JButton("5");
btn5.setBounds(76, 118, 70, 33);
contentPane.add(btn5);
JButton btn6 = new JButton("6");
btn6.setBounds(137, 117, 76, 35);
contentPane.add(btn6);
JButton btn7 = new JButton("7");
btn7.setBounds(12, 161, 53, 37);
contentPane.add(btn7);
JButton btn8 = new JButton("8");
btn8.setBounds(78, 161, 68, 37);
contentPane.add(btn8);
JButton btn9 = new JButton("9");
btn9.setBounds(147, 161, 56, 37);
contentPane.add(btn9);
JButton btn0 = new JButton("0");
btn0.setBounds(12, 199, 70, 52);
contentPane.add(btn0);
JButton btncall = new JButton("call");
btncall.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
mycall();
}
});
btncall.setBounds(95, 199, 88, 52);
contentPane.add(btncall);
btn1.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn2.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn3.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
bt4.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn5.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn6.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn7.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn8.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn9.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
btn0.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {myclick(e);}});
}
public void mycall() {
String str_tel = tf.getText();
JOptionPane.showMessageDialog(null, "Calling\n"+str_tel);
}
public void myclick(MouseEvent e) {
// System.out.println(e.getSource());
// System.out.println(e.getComponent());
JButton btn = (JButton)e.getSource();
String str_old= tf.getText();
String str_new= btn.getText();
tf.setText(str_old+str_new);
System.out.println(btn.getText());
}
}
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