In this Java AWT Video, we will use the AWT ScrollPane to scroll the Grid of Checkboxes. The Check Boxes are created in a panel and then given to scroll pane.
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package AwtDemoPkg; import java.awt.Checkbox; import java.awt.FlowLayout; import java.awt.Frame; import java.awt.GridLayout; import java.awt.Panel; import java.awt.ScrollPane; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; public class FrameWindow extends Frame implements WindowListener { public FrameWindow(String FrameTitle) { //Display the Frame Window super(FrameTitle); setSize(300, 150); setLocation(100,100); addWindowListener(this); //Sample 01: Create a grid of Checkboxes Panel CheckBoxPanel = new Panel(); CheckBoxPanel.setLayout(new GridLayout(30,30)); for (int col=1; col<31; col++) { for (int row=1; row<31; row++) { Checkbox chk = new Checkbox(col + "." + row ); CheckBoxPanel.add(chk); } } //Sample 02: Add Panel to a Scroll Panel ScrollPane scp = new ScrollPane(ScrollPane.SCROLLBARS_ALWAYS); scp.setSize(500,250); scp.add(CheckBoxPanel); //Sample 03: Add ScrollPane to Frame Window add(scp); } public void windowOpened(WindowEvent e) {} public void windowClosed(WindowEvent e) {} public void windowIconified(WindowEvent e) {} public void windowDeiconified(WindowEvent e) {} public void windowActivated(WindowEvent e) {} public void windowDeactivated(WindowEvent e) {} public void windowClosing(WindowEvent e) { this.dispose(); } } |
Categories: AWT-Tube
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