java/ChatClient.txt at main · kimjin8748/java · GitHub

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package swing.component;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.Border;

import swing.frame.ContentPaneFrame;

public class ChatClient extends JFrame implements ActionListener {

	private JCheckBox chk1;
	private JCheckBox chk2;
	private JCheckBox chk3;
	private JLabel lblResult;
	public int sum = 0;
	private JTextField tf;
	private JTextArea ta;
	private JButton btnSend;

	public ChatClient(String title) {
		setTitle(title);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setSize(300, 350);
		setLocationRelativeTo(null);
		setLayout(new BorderLayout());

		setPanelCenter(); // 메소드로 뽑아서 작업하는 것

		setPanelBottom();

		setResizable(false);

		tf.setFocusable(true);

		setVisible(true);
		tf.requestFocus();
	}
	private void setPanelCenter() {
		JPanel panCenter = new JPanel(); // panel은 flowlayout이 기본 설정
		panCenter.setLayout(new BorderLayout());
		panCenter.setBackground(Color.RED);

		ta = new JTextArea(10, 20);
		ta.setLineWrap(true); // 글자가 벽에 닿으면 다음줄로 넘어오는 작업
		ta.setEditable(false); // 글자가 나온것을 수정하지 못하도록 하는 작업

		JScrollPane sp = new JScrollPane(ta, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
				JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); // 스크롤을 설정하는 방법

		panCenter.add(sp); // 스크롤 설정한것을 add해야 스크롤이 보인다


		add(panCenter, BorderLayout.CENTER); //레이아웃을 센터로 보이게 설정
	}
	private void setPanelBottom() {
		JPanel panBottom = new JPanel();


		tf = new JTextField(12);
		tf.addActionListener(this);
		panBottom.add(tf);

		btnSend = new JButton("보내기");
		btnSend.setPreferredSize(new Dimension(100, 30)); // 버튼의 길이를 조절할 수 있다
		btnSend.addActionListener(this);
		panBottom.add(btnSend);

		add(panBottom, BorderLayout.SOUTH);
	}
	public static void main(String[] args) {
		new ChatClient("ChatClient");


	}
	@Override
	public void actionPerformed(ActionEvent e) {

		if(!tf.getText().equals("")) {
			ta.append("[아무개] : " + tf.getText() + "\n");
		}
		tf.setText("");


	}

}