Como alterar icone da janela de um JInternalFrame

Mudar Icone da janela de um JInternalFrame

B

bezier_curve 15 de set. de 2010

http://download-llnw.oracle.com/javase/6/docs/api/javax/swing/JInternalFrame.html#setFrameIcon(javax.swing.Icon)

joaosouza 15 de set. de 2010

Olá progJava, blz?

Você pode fazer da seguinte forma, utilizando o método setFrameIcon da classe JInternalFrame no construtor de seu Internal Frame, como no exemplo abaixo:

setFrameIcon( new javax.swing.ImageIcon( getClass().getResource("/img/icon_test.gif") ) );

progJava 15 de set. de 2010

deu erro.:

Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException

at javax.swing.ImageIcon.(ImageIcon.java:138)

at t.teste.(teste.java:18)

at t.ta.jButton1ActionPerformed(ta.java:92)

at t.ta.access$100(ta.java:19)

at t.ta$2.actionPerformed(ta.java:62)

at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)

at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)

at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)

at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)

at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)

at java.awt.Component.processMouseEvent(Component.java:6038)

at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)

at java.awt.Component.processEvent(Component.java:5803)

at java.awt.Container.processEvent(Container.java:2058)

at java.awt.Component.dispatchEventImpl(Component.java:4410)

at java.awt.Container.dispatchEventImpl(Container.java:2116)

at java.awt.Component.dispatchEvent(Component.java:4240)

at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)

at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)

at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)

at java.awt.Container.dispatchEventImpl(Container.java:2102)

at java.awt.Window.dispatchEventImpl(Window.java:2429)

at java.awt.Component.dispatchEvent(Component.java:4240)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)

at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)

at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

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