Language/Java
[Java] 실습 (frame)
arajo
2022. 8. 16. 21:42
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package swing.frame;
import java.awt.*;
import javax.swing.*;
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
public class ContentPaneExam extends JFrame {
//--------------------------------------------------------------------------
ContentPaneExam() {
setTitle("ContentPean과 JFrame 공부하기");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // 우측상단의 x버튼을 활성화 시킨다.
Container contentPane = getContentPane(); // 컨텐트팬의 정보를 알아내기
contentPane.setBackground(Color.ORANGE); // 오렌지색으로 배경을 설정한다.
contentPane.setLayout(new FlowLayout()); // 컨텐트팬에 배치관리자를 설정한다.
contentPane.add(new JButton("OK"));
contentPane.add(new JButton("Cancel"));
contentPane.add(new Button("Ignore")); // J로 구분
setSize(500, 400); // (width, height)
setVisible(true);
}
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
public static void main(String[] args) {
new ContentPaneExam();
}
}
package swing.frame;
import java.awt.*;
import javax.swing.*;
public class FlowLayoutExam extends JFrame {
FlowLayoutExam() {
setTitle("FlowLayout 연습");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
Container contentPane = getContentPane();
contentPane.setLayout(new FlowLayout(FlowLayout.LEFT, 20, 40)); // hGap, vGap
contentPane.add(new JButton("plus"));
contentPane.add(new JButton("minus"));
contentPane.add(new JButton("multiply"));
contentPane.add(new JButton("divide"));
contentPane.add(new JButton("Calculate"));
setSize(400, 300);
setVisible(true);
}
public static void main(String[] args) {
new FlowLayoutExam();
}
}
package swing.frame;
import javax.swing.*;
import java.awt.*;
public class BorderLayoutExam extends JFrame {
BorderLayoutExam() {
setTitle("BorderLayout 연습");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPane = getContentPane();
contentPane.setLayout(new BorderLayout(30, 20));
contentPane.add(new JButton("Calculate"), BorderLayout.CENTER);
contentPane.add(new JButton("add"), BorderLayout.NORTH);
contentPane.add(new JButton("Calculate"), BorderLayout.SOUTH);
contentPane.add(new JButton("mut"), BorderLayout.EAST);
contentPane.add(new JButton("div"), BorderLayout.WEST);
setSize(400, 300);
setVisible(true);
}
public static void main(String[] args) {
new BorderLayoutExam();
}
}
package swing.frame;
import java.awt.*;
import javax.swing.*;
public class GridLayoutExam extends JFrame{
public GridLayoutExam() {
super("GridLayout 연습");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPane = getContentPane();
// 1x10의 GridLayout 배치관리자를 설정한다.
contentPane.setLayout(new GridLayout(1, 10)); // (1행, 10열)
for(int i = 0; i < 10; i++) { // 10개의 버튼을 부착시킨다.
String text = Integer.toString(i + 1);
JButton button = new JButton(text);
contentPane.add(button);
}
setSize(500, 200);
setVisible(true);
}
public static void main(String[] args) {
new GridLayoutExam();
}
}
package swing.frame;
import java.awt.*;
import javax.swing.*;
public class NoneLayoutExam extends JFrame{
NoneLayoutExam() {
super("배치관리자 없이 절대 위치에 버튼을 배치하기");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPane = getContentPane();
contentPane.setLayout(null); // 컨텐트팬의 배치관리자를 제거한다.
JLabel la = new JLabel("How are you?");
la.setLocation(260, 80);
la.setSize(200, 30);
contentPane.add(la);
// 버튼을 9개 생성하고 사선방향으로 살짝 겹치게 나열해보자.
for(int i = 1; i <= 9; i++) {
JButton b = new JButton(Integer.toString(i));
b.setLocation(i*15, i*15);
b.setSize(50,20);
contentPane.add(b);
}
setSize(400, 300);
setVisible(true);
}
public static void main(String[] args) {
new NoneLayoutExam();
}
}
package swing.frame;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JComponentExam extends JFrame{
JComponentExam() {
super("JComponent의 공통 메서드 연습");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container c = getContentPane();
c.setLayout(new FlowLayout());
JButton b1 = new JButton("Magenta/Yellow Button");
JButton b2 = new JButton(" Disabled Button");
JButton b3 = new JButton("getX(), getY()");
b1.setBackground(Color.YELLOW);
b2.setForeground(Color.MAGENTA);
b1.setFont(new Font("Arial", Font.ITALIC, 20));
b2.setEnabled(false);
b3.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JButton b = (JButton)e.getSource();
setTitle(b.getX() + ", " + b.getY());
}
});
c.add(b1); c.add(b2); c.add(b3);
setSize(260, 200);
setVisible(true);
}
public static void main(String[] args) {
new JComponentExam();
}
}
package swing.frame;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class ButtonImageExam extends JFrame {
ButtonImageExam() {
setTitle("이미지 버튼 연습");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container c = getContentPane();
c.setLayout(new FlowLayout());
URL normalUrl = getClass().getResource("images/normalIcon.gif");
URL rolloverUrl = getClass().getResource("images/rolloverIcon.gif");
URL pressedUrl = getClass().getResource("images/pressedIcon.gif");
ImageIcon normalIcon = new ImageIcon(normalUrl);
ImageIcon rolloverIcon = new ImageIcon(rolloverUrl);
ImageIcon pressedIcon = new ImageIcon(pressedUrl);
JButton btn = new JButton("Call", normalIcon);
btn.setPressedIcon(pressedIcon);
btn.setRolloverIcon(rolloverIcon);
btn.setPreferredSize(new Dimension(200, 100));
c.add(btn);
setSize(300, 300);
setVisible(true);
}
public static void main(String[] args) {
new ButtonImageExam();
}
}
아래처럼 URL을 쓰지 않고 이미지풀경로를 14~16번줄에 입력해줘도 된다.
package swing.frame;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class ButtonImageExam extends JFrame {
ButtonImageExam() {
setTitle("이미지 버튼 연습");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container c = getContentPane();
c.setLayout(new FlowLayout());
ImageIcon normalIcon = new ImageIcon(이미지풀경로);
ImageIcon rolloverIcon = new ImageIcon(이미지풀경로);
ImageIcon pressedIcon = new ImageIcon(이미지풀경로);
JButton btn = new JButton("Call", normalIcon);
btn.setPressedIcon(pressedIcon);
btn.setRolloverIcon(rolloverIcon);
btn.setPreferredSize(new Dimension(200, 100));
c.add(btn);
setSize(300, 300);
setVisible(true);
}
public static void main(String[] args) {
new ButtonImageExam();
}
}