JTextField, JTextArea

JTextField 연습 코드

import javax.swing.*; // JFrame
import java.awt.*; // Container
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.*;

public class TextFieldEx extends JFrame{

	TextFieldEx(){
		setTitle("11장 연습");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container c = getContentPane();
		c.setLayout(new FlowLayout());
	
		c.add(new JLabel("이름 "));
		c.add(new JTextField(20));
		c.add(new JLabel("학과 "));
		c.add(new JTextField("컴퓨터공학과",20));
		c.add(new JLabel("주소 "));
		c.add(new JTextField("서울시 ...",20));
		
		setSize(300, 150); // 프레임 크기 300x300
		setVisible(true); // 프레임 출력
		
		c.setFocusable(true);
		c.requestFocus();
	}
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new TextFieldEx();
	}

}

 

JTextArea 연습 코드

import javax.swing.*; // JFrame
import java.awt.*; // Container
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.*;

public class TextAreaEx extends JFrame{

	private JTextField tf=new JTextField(20);
	private JTextArea ta= new JTextArea(7, 20); // 7 Line, 20 character
	
	TextAreaEx(){
		setTitle("11장 연습");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container c = getContentPane();
		c.setLayout(new FlowLayout());
	
		c.add(new JLabel("입력 후 <Enter> 키를 입력하세요"));
		c.add(tf);
		c.add(new JScrollPane(ta));
		
		tf.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				JTextField t = (JTextField)e.getSource();
				ta.append(t.getText()+"\n");
				t.setText("");
			}
		});
		
		setSize(300, 300); // 프레임 크기 300x300
		setVisible(true); // 프레임 출력
		
		c.setFocusable(true);
		c.requestFocus();
	}
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new TextAreaEx();
	}

}