📄 basicviewportui.java
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package javax.swing.plaf.basic;import javax.swing.plaf.*;import javax.swing.*;import java.awt.*;public class BasicViewportUI extends ViewportUI { public static ComponentUI createUI(final JComponent c) { return new BasicViewportUI(); } public void installUI(final JComponent c) { super.installUI(c); } public Dimension getPreferredSize(JComponent c) { Dimension d = new Dimension(100,100); System.out.println("BasicViewportUI->preff->"+d); return d; } public void paint(Graphics g, JComponent c) { System.out.println("BasicViewportUI->paint->"+c); }}
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