보더 레이아웃을 사용하자
package main; import javax.swing.*; import java.awt.*; public class BorderLayoutEx extends JFrame { BorderLayoutEx() { setTitle("BorderLayout Sample"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout(new BorderLayout()); add(new JButton("Console"), BorderLayout.SOUTH); add(new JButton("Test.java"), BorderLayout.CENTER); add(new JButton("Package Explorer"), BorderLayout.WEST); setSize(600, 400); setVisible(true); } public static void main(String[] args) { new BorderLayoutEx(); } }
그리드 레이아웃을 사용하자
package main; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.GridLayout; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.SwingConstants; public class MySwing01 extends JFrame{ MySwing01(){ setTitle("Multiple Layout Example"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel contentP=new JPanel(); contentP.setLayout(new BorderLayout()); JPanel upperP = new JPanel(); upperP.setLayout(new GridLayout(1, 2)); JPanel leftP=new JPanel(); leftP.setLayout(new GridLayout(4,1)); leftP.setBackground(Color.YELLOW); leftP.add(new JLabel("Type ID", SwingConstants.CENTER)); leftP.add(new JTextField("")); leftP.add(new JLabel("Type Password", SwingConstants.CENTER)); leftP.add(new JTextField("")); upperP.add(leftP); JPanel rightP=new JPanel(); rightP.setLayout(new GridLayout(3,1)); rightP.setBackground(Color.GREEN); rightP.add(new JLabel("Plaese check!!", SwingConstants.CENTER)); rightP.add(new JLabel("C# JCheckBox", SwingConstants.CENTER)); rightP.add(new JLabel("C++ JCheckBox", SwingConstants.CENTER)); upperP.add(rightP); contentP.add(upperP); JPanel lowerP=new JPanel(); JButton okB=new JButton("OK"); okB.setPreferredSize(new Dimension(100,30)); lowerP.add(okB); contentP.add(lowerP, BorderLayout.SOUTH); add(contentP); setSize(300, 200); setVisible(true); } public static void main(String[] args) { new MySwing01(); } }
버튼을 리스너에 등록하여 콜백하여 특정 기능을 수행하도록 하자
package _1117_C; import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class main extends JFrame { JLabel label; main() { setTitle("버튼 눌러 텍스트 보여주기"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel grid = new JPanel(); grid.setLayout(new GridLayout(2, 1)); JPanel topGrid = new JPanel(); topGrid.setLayout(new GridLayout(1, 3)); JButton button1 = new JButton("Hannam"); JButton button2 = new JButton("University"); JButton button3 = new JButton("Student"); topGrid.add(button1); topGrid.add(button2); topGrid.add(button3); grid.add(topGrid); label = new JLabel("Press Button", SwingConstants.CENTER); grid.add(label); add(grid); setSize(300, 150); setVisible(true); MyActionListener listener = new MyActionListener(); button1.addActionListener(listener); button2.addActionListener(listener); button3.addActionListener(listener); } private class MyActionListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub label.setText(((JButton)e.getSource()).getText()); } } public static void main(String[] args) { new main(); } }
카드 레이아웃을 사용하자
package _1117_D; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.SwingConstants; public class _1117C extends JFrame { JLabel label; JPanel grid; _1117C() { setTitle("버튼 눌러 텍스트 보여주기"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); grid = new JPanel(); grid.setLayout(new GridLayout(2, 1)); JPanel topGrid = new JPanel(); topGrid.setLayout(new GridLayout(1, 3)); JButton button1 = new JButton("Hannam"); JButton button2 = new JButton("University"); JButton button3 = new JButton("Student"); topGrid.add(button1); topGrid.add(button2); topGrid.add(button3); grid.add(topGrid); label = new JLabel("Press Button", SwingConstants.CENTER); grid.add(label); MyActionListener listener = new MyActionListener(); button1.addActionListener(listener); button2.addActionListener(listener); button3.addActionListener(listener); } public JPanel getPanel() { return grid; } private class MyActionListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub label.setText(((JButton)e.getSource()).getText()); } } }
package _1117_D; import javax.swing.*; import javax.swing.border.EmptyBorder; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class main extends JFrame { private JPanel contentPane; private JPanel panelUp; private JPanel panelDown; private JButton buttonLeft; private JButton buttonCenter; private JButton buttonRight; private JPanel panelLeft; private JPanel panelCenter; private JPanel panelRight; private JLabel labelNewLabel_1; private JButton buttonNewButton; private JButton buttonNewButton_1; private JButton buttonNewButton_2; private final static String PANEL_LEFT = "버튼3개"; private final static String PANEL_CENTER = "이전연습문제"; private final static String PANEL_RIGHT = "글자"; public static void main(String[] args) { main frame = new main(); frame.setVisible(true); } public main() { setTitle("CardLayout 사용하기"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 600, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, 0)); setContentPane(contentPane); panelUp = new JPanel(); contentPane.add(panelUp, BorderLayout.NORTH); buttonLeft = new JButton(PANEL_LEFT); buttonLeft.addActionListener(new MyActionListener()); panelUp.add(buttonLeft); buttonCenter = new JButton(PANEL_CENTER); buttonCenter.addActionListener(new MyActionListener()); panelUp.add(buttonCenter); buttonRight = new JButton(PANEL_RIGHT); buttonRight.addActionListener(new MyActionListener()); panelUp.add(buttonRight); panelDown = new JPanel(); contentPane.add(panelDown, BorderLayout.CENTER); panelDown.setLayout(new CardLayout()); panelLeft = new JPanel(); buttonNewButton = new JButton("button1"); panelLeft.add(buttonNewButton); buttonNewButton_1 = new JButton("button2"); panelLeft.add(buttonNewButton_1); buttonNewButton_2 = new JButton("button3"); panelLeft.add(buttonNewButton_2); panelDown.add(panelLeft, PANEL_LEFT); panelCenter = new JPanel(); _1117C center = new _1117C(); panelCenter.add(center.getPanel()); panelDown.add(panelCenter, PANEL_CENTER); panelRight = new JPanel(); labelNewLabel_1 = new JLabel("오른쪽 입니다"); panelRight.add(labelNewLabel_1); panelDown.add(panelRight, PANEL_RIGHT); } private class MyActionListener implements ActionListener { public void actionPerformed(ActionEvent e) { JButton button = (JButton) e.getSource(); CardLayout cl = (CardLayout) (panelDown.getLayout()); cl.show(panelDown, button.getText()); } } }
