package java0915_gui; import java.awt.Button; import java.awt.Color; import java.awt.Frame; import java.awt.GridLayout; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; class UserLayout extends Frame { Button northBtn, centerBtn, southBtn, eastBtn, westBtn; public UserLayout() { northBtn = new Button("north"); centerBtn = new Button("center"); southBtn = new Button("south"); eastBtn = new Button("east"); westBtn = new Button("west"); setLayout(new GridLayout(2, 3)); this.add(northBtn); this.add(centerBtn); this.add(southBtn); this.add(eastBtn); this.add(westBtn); northBtn.setForeground(new Color(0, 255, 0)); // RGB값 0~255 northBtn.setBackground(new Color(255, 0, 0)); // RED GREEN BLUE setBackground(Color.cyan); // 색깔 상수는 대소문자구별을 하지 않는다. setSize(500, 400); setVisible(true); this.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { System.exit(0); } }); } } public class Java216_gui { public static void main(String[] args) { new UserLayout(); } }