ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED : ScrollPaneConstants « javax.swing « Java by API

1. Java by API
2. javax.swing
3. ScrollPaneConstants

ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED

 
import java.awt.BorderLayout;
import java.awt.GridLayout;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ScrollPaneConstants;

public class MainClass extends JPanel {

  public MainClass() {
    setLayout(new BorderLayout());

    JPanel jp = new JPanel();
    jp.setLayout(new GridLayout(20, 20));
    int b = 0;
    for (int i = 0; i < 20; i++) {
      for (int j = 0; j < 20; j++) {
        jp.add(new JButton("Button " + b));
        ++b;
      }
    }

    // Add panel to a scroll pane.
    int v = ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
    int h = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
    JScrollPane jsp = new JScrollPane(jp, v, h);

    // Add scroll pane to the content pane.
    add(jsp, BorderLayout.CENTER);

  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200, 200);
    frame.setVisible(true);
  }
}

           
         
  

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