View.java

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import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
 
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
 
public class View {
 
    private JFrame frame;
    private JPanel[] panels;
 
    private JLabel label;
 
    private JButton upButton;
    private JButton downButton;
 
    public View() {
        setFrame();
        setDisplayPanel();
        setControlPanel();
    }
 
    private void setFrame() {
        frame = new JFrame("Client");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 300);
        frame.setVisible(true);
 
        Container cp = frame.getContentPane();
        cp.setLayout(new BoxLayout(cp, BoxLayout.Y_AXIS));
 
        panels = new JPanel[2];
        for (int i = 0; i < panels.length; i++) {
            panels[i] = new JPanel();
            cp.add(panels[i]);
        }
    }
 
    private void setDisplayPanel() {
        label = new JLabel("-");
        label.setFont(label.getFont().deriveFont(64.0f));
        label.setAlignmentX(Component.CENTER_ALIGNMENT);
        panels[0].setLayout(new BoxLayout(panels[0], BoxLayout.Y_AXIS));
 
        panels[0].add(label);
    }
 
    private void setControlPanel() {
 
        upButton = new JButton("Up");
        downButton = new JButton("Down");
        upButton.setAlignmentX(Component.CENTER_ALIGNMENT);
        downButton.setAlignmentX(Component.CENTER_ALIGNMENT);
 
        JPanel panelsContainer = new JPanel();
 
        panels[1].setLayout(new BoxLayout(panels[1], BoxLayout.Y_AXIS));
        panelsContainer.setLayout(new BoxLayout(panelsContainer, BoxLayout.X_AXIS));
 
        panels[1].add(panelsContainer);
        panelsContainer.add(upButton);
        panelsContainer.add(downButton);
    }
 
    public JButton getUpButton() {
        return upButton;
    }
 
    public JButton getDownButton() {
        return downButton;
    }
 
    public JLabel getResultLabel() {
        return label;
    }
}