Using anti-alias

Using anti-alias

set anti-alias for graphics:

g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING，
RenderingHints.VALUE_ANTIALIAS_ON);

set anti-alias for components:

//  Making a JTextArea use anti-Alias fonts
//  only works in JDK 1.5+
jtextArea.putClientProperty(
com.sun.java.swing.SwingUtilities2.AA_TEXT_PROPERTY_KEY,
Boolean.TRUE );