[Java/Swing] 배치 관리자 1 - FlowLayout 구현

코드

public class FlowLayoutEx extends JFrame {

    private final int BUTTON_COUNT = 6; // 버튼 개수
    private JButton[] buttons = new JButton[BUTTON_COUNT];

    private FlowLayout flowLayout;

    public FlowLayoutEx3() {
        initData();
        setInitLayout();
    }

    private void initData() {
        setTitle("FlowLayout 구현");
        setSize(500, 500);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 버튼 인스턴스화
        for (int i = 0; i < BUTTON_COUNT; i++) {
            buttons[i] = new JButton("버튼 " + (i + 1));
        }

        flowLayout = new FlowLayout(FlowLayout.LEFT, 100, 100);

    }

    private void setInitLayout() {
        setLayout(flowLayout);

        // 버튼 추가
        for (int j = 0; j < BUTTON_COUNT; j++) {
            add(buttons[j]);
        }
        setVisible(true);
    }

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

} // end of class

실행