Exception in thread "main" java.lang.NoClassDefFoundError
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:141)
        at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
        at java.awt.Font.initializeFont(Font.java:308)
        at java.awt.Font.<init>(Font.java:344)
        at javax.swing.plaf.metal.DefaultMetalTheme$FontDelegate.getFont(DefaultMetalTheme.java:195)
        at javax.swing.plaf.metal.DefaultMetalTheme.getFont(DefaultMetalTheme.java:153)
        at javax.swing.plaf.metal.DefaultMetalTheme.getControlTextFont(DefaultMetalTheme.java:129)
        at javax.swing.plaf.metal.MetalLookAndFeel$FontActiveValue.createValue(MetalLookAndFeel.java:1399)
        at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:199)
        at javax.swing.UIDefaults.get(UIDefaults.java:129)
        at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
        at javax.swing.UIDefaults.getFont(UIDefaults.java:349)
        at javax.swing.UIManager.getFont(UIManager.java:491)
        at javax.swing.LookAndFeel.installColorsAndFont(LookAndFeel.java:89)
        at javax.swing.plaf.basic.BasicLabelUI.installDefaults(BasicLabelUI.java:302)
        at javax.swing.plaf.basic.BasicLabelUI.installUI(BasicLabelUI.java:254)
        at javax.swing.JComponent.setUI(JComponent.java:449)
        at javax.swing.JLabel.setUI(JLabel.java:238)
        at javax.swing.JLabel.updateUI(JLabel.java:248)
        at javax.swing.JLabel.<init>(JLabel.java:141)
        at javax.swing.JLabel.<init>(JLabel.java:160)
        at javax.swing.plaf.basic.BasicOptionPaneUI.addMessageComponents(BasicOptionPaneUI.java:432)
        at javax.swing.plaf.basic.BasicOptionPaneUI.createMessageArea(BasicOptionPaneUI.java:331)
        at javax.swing.plaf.basic.BasicOptionPaneUI.installComponents(BasicOptionPaneUI.java:154)
        at javax.swing.plaf.basic.BasicOptionPaneUI.installUI(BasicOptionPaneUI.java:122)
        at javax.swing.JComponent.setUI(JComponent.java:449)
        at javax.swing.JOptionPane.setUI(JOptionPane.java:1693)
        at javax.swing.JOptionPane.updateUI(JOptionPane.java:1715)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1678)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1641)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1609)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1587)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1567)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1551)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1539)
        at mobilis.Parameter.main(Parameter.java:68)
			
		
 
	
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