스윙 콤포넌트 추가 방법 1 : 기본 콤포넌트

Posted on: 2018년 05월 10일 2018년 05월 10일
Categories: 강의자료, 자바

추가사항
1. 2019-05-09 : JTable 콤포넌트 추가 방법

JFrame을 상속받아 MainUI 클래스 만들기

public class MainUI extends JFrame{
	public MainUI(){
		this.setTitle("201712345 홍길동");
		this.setSize(120, 200);
		this.setLayout(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		// 콤포넌트 추가는 이곳에

		this.setVisible(true);
	}

	public static void main(String[] args) {
		new MainUI();
	}
}

public class MainUI extends JFrame{

public MainUI(){

this.setTitle("201712345 홍길동");

this.setSize(120, 200);

this.setLayout(null);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

// 콤포넌트 추가는 이곳에

this.setVisible(true);

}

public static void main(String[] args) {

new MainUI();

}

콤포넌트 예제

JButton 콤포넌트 1개 추가하기

public class MainUI extends JFrame{
	public MainUI(){
		this.setTitle("201712345 홍길동");
		this.setSize(120, 200);
		this.setLayout(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JButton btnAddr = new JButton("주소록");
		btnAddr.setBounds(10, 10, 100, 25);
		this.add(btnAddr);

		this.setVisible(true);
	}
}

public class MainUI extends JFrame{

public MainUI(){

this.setTitle("201712345 홍길동");

this.setSize(120, 200);

this.setLayout(null);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton btnAddr = new JButton("주소록");

btnAddr.setBounds(10, 10, 100, 25);

this.add(btnAddr);

this.setVisible(true);

}

JButton에 ActionListener 추가하기 #1 : 버튼에 ActionListener 추가하기
1) btnAddr.addActionListener(new Ac 까지 입력하고 Ctrl+Spacebar를 클릭하여 추가

public class MainUI extends JFrame{
	public MainUI(){
		this.setTitle("201712345 홍길동");
		this.setSize(120, 200);
		this.setLayout(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JButton btnAddr = new JButton("주소록");
		btnAddr.setBounds(10, 10, 100, 25);
		this.add(btnAddr);
		btnAddr.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				//new AddressUI();
			}
		});

		this.setVisible(true);
	}
}

public class MainUI extends JFrame{

public MainUI(){

this.setTitle("201712345 홍길동");

this.setSize(120, 200);

this.setLayout(null);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton btnAddr = new JButton("주소록");

btnAddr.setBounds(10, 10, 100, 25);

this.add(btnAddr);

btnAddr.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

//new AddressUI();

}

});

this.setVisible(true);

}

JButton에 ActionListener 추가하기 #2 : MainUI에 ActionListener 인터페이스 추가하기
1) JFrame 뒤에 implements ActionListener를 입력한다
2) class MainUI에 오류 발생으로 빨간 밑줄이 나온다.
3) MainUI위에 마우스를 올려놓은 후 Add unimplements method를 클릭한다.
4) public void actionPerformed(ActionEvent e){} 메소드가 추가된다.

public class MainUI extends JFrame implements ActionListener {
	public MainUI(){
		this.setTitle("201712345 홍길동");
		this.setSize(120, 200);
		this.setLayout(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JButton btnAddr = new JButton("주소록");
		btnAddr.setBounds(10, 10, 100, 25);
		this.add(btnAddr);
		btnAddr.addActionListener(this);

		this.setVisible(true);
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		switch(e.getActionCommand()){
		case "주소록":
			//new AddressUI();
			break;
		}
	}
}

public class MainUI extends JFrame implements ActionListener {

public MainUI(){

this.setTitle("201712345 홍길동");

this.setSize(120, 200);

this.setLayout(null);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton btnAddr = new JButton("주소록");

btnAddr.setBounds(10, 10, 100, 25);

this.add(btnAddr);

btnAddr.addActionListener(this);

this.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

switch(e.getActionCommand()){

case "주소록":

//new AddressUI();

break;

}

JFrame을 상속받아 AddressUI 클래스 만들기

public class AddressUI extends JFrame{
	public AddressUI(){
		this.setTitle("주소록");
		this.setSize(800, 600);
		this.setDefaultCloseOperation(HIDE_ON_CLOSE);
		this.setLayout(null);

		this.setVisible(true);
	}
}

public class AddressUI extends JFrame{

public AddressUI(){

this.setTitle("주소록");

this.setSize(800, 600);

this.setDefaultCloseOperation(HIDE_ON_CLOSE);

this.setLayout(null);

this.setVisible(true);

}

JLabel 추가

JLabel lblName = new JLabel("이름"); lblName.setBounds(10,10,100,25); this.add(lblName);

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JLabel lblName = new JLabel("이름");
lblName.setBounds(10,10,100,25);
this.add(lblName);
JTextField 추가

JTextField txtName = new JTextField(); txtName.setBounds(120, 10, 100, 25); this.add(txtName);

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JTextField txtName = new JTextField();
txtName.setBounds(120, 10, 100, 25);
this.add(txtName);

JRadioButton 추가

JRadioButton rdoM = new JRadioButton("남자");
rdoM.setBounds(120, 40, 100, 25);
this.add(rdoM);

JRadioButton rdoF = new JRadioButton("여자");
rdoF.setBounds(230, 40, 100, 25);
this.add(rdoF);
rdoF.setSelected(true);

ButtonGroup grpSex = new ButtonGroup();
grpSex.add(rdoM);
grpSex.add(rdoF);

JRadioButton rdoM = new JRadioButton("남자");

rdoM.setBounds(120, 40, 100, 25);

this.add(rdoM);

JRadioButton rdoF = new JRadioButton("여자");

rdoF.setBounds(230, 40, 100, 25);

this.add(rdoF);

rdoF.setSelected(true);

ButtonGroup grpSex = new ButtonGroup();

grpSex.add(rdoM);

grpSex.add(rdoF);

JComboBox 추가 방법 1

String[] strHp = new String[]{"010","011","016","017","018","019"};
JComboBox cmbHp = new JComboBox<String>(strHp);
cmbHp.setBounds(120, 70, 100, 25);
this.add(cmbHp);

String[] strHp = new String[]{"010","011","016","017","018","019"};

JComboBox cmbHp = new JComboBox<String>(strHp);

cmbHp.setBounds(120, 70, 100, 25);

this.add(cmbHp);

JComboBox 추가 방법 2

ArrayList<String> arDept = new ArrayList<String>();
arDept.add("스마트미디어학과");
arDept.add("게임학과");
arDept.add("컴퓨터공학과");

comDept = new JComboBox<String>(arDept.toArray(new String[arDept.size()]));
comDept.setBounds(10, 10, 100, 25);
this.add(comDept);

ArrayList<String> arDept = new ArrayList<String>();

arDept.add("스마트미디어학과");

arDept.add("게임학과");

arDept.add("컴퓨터공학과");

comDept = new JComboBox<String>(arDept.toArray(new String[arDept.size()]));

comDept.setBounds(10, 10, 100, 25);

this.add(comDept);

JComboBox에 Listener 추가와 item 변경

String[] strOffice = new String[] { "연구동", "공학관","진리관" };
comBuild = new JComboBox<String>(strOffice);
comBuild.setBounds(10, 10, 80, 25);
this.add(comBuild);

comRoom = new JComboBox<String>();
comRoom.setBounds(100, 10, 100, 25);
this.add(comRoom);

comBuild.addActionListener(new ActionListener() {
	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		ArrayList<String> arRoom = new ArrayList<String>();
		if(comBuild.getSelectedItem().toString().contains("연구동")) {
			arRoom.add("연구동112");
			arRoom.add("연구동113");
			arRoom.add("연구동114");
		}
		if(comBuild.getSelectedItem().toString().contains("공학관")) {
			arRoom.add("공학관341");
			arRoom.add("공학관342");
			arRoom.add("공학관343");
		}
		if(comBuild.getSelectedItem().toString().contains("진리관")) {
			arRoom.add("진리관123");
			arRoom.add("진리관125");
			arRoom.add("진리관127");
		}
		comRoom.removeAllItems();
		for (int i = 0; i < arRoom.size(); i++) {
			comRoom.addItem(arRoom.get(i));
		}
	}
});

String[] strOffice = new String[] { "연구동", "공학관","진리관" };

comBuild = new JComboBox<String>(strOffice);

comBuild.setBounds(10, 10, 80, 25);

this.add(comBuild);

comRoom = new JComboBox<String>();

comRoom.setBounds(100, 10, 100, 25);

this.add(comRoom);

comBuild.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

ArrayList<String> arRoom = new ArrayList<String>();

if(comBuild.getSelectedItem().toString().contains("연구동")) {

arRoom.add("연구동112");

arRoom.add("연구동113");

arRoom.add("연구동114");

}

if(comBuild.getSelectedItem().toString().contains("공학관")) {

arRoom.add("공학관341");

arRoom.add("공학관342");

arRoom.add("공학관343");

}

if(comBuild.getSelectedItem().toString().contains("진리관")) {

arRoom.add("진리관123");

arRoom.add("진리관125");

arRoom.add("진리관127");

}

comRoom.removeAllItems();

for (int i = 0; i < arRoom.size(); i++) {

comRoom.addItem(arRoom.get(i));

}

});

JTextArea 추가

JTextArea txtMemo = new JTextArea(); txtMemo.setBounds(10, 220, 600, 300); this.add(txtMemo);

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JTextArea txtMemo = new JTextArea();
txtMemo.setBounds(10, 220, 600, 300);
this.add(txtMemo);
JPanel 추가

JPanel panel = new JPanel(); panel.setBounds(10, 10, 480, 530); panel.setBackground(Color.green); panel.setLayout(null); this.add(panel);

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JPanel panel = new JPanel();
panel.setBounds(10, 10, 480, 530);
panel.setBackground(Color.green);
panel.setLayout(null);
this.add(panel);

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