错误信息太多,麻烦各位copy一下试试,帮帮我,谢谢

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  1.   

    我是楼主,下面这些是点击"浏览"按钮后出现的错误信息,我是一个菜鸟,程序写的很初级,请大家多包含
    java.lang.NullPointerException
            at sunrg.actionPerformed(sunrg.java:96)
            at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:17
    86)
            at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Abstra
    ctButton.java:1839)
            at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel
    .java:420)
            at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258
    )
            at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonL
    istener.java:245)
            at java.awt.Component.processMouseEvent(Component.java:5100)
            at java.awt.Component.processEvent(Component.java:4897)
            at java.awt.Container.processEvent(Container.java:1569)
            at java.awt.Component.dispatchEventImpl(Component.java:3615)
            at java.awt.Container.dispatchEventImpl(Container.java:1627)
            at java.awt.Component.dispatchEvent(Component.java:3477)
            at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483
    )
            at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
            at java.awt.Container.dispatchEventImpl(Container.java:1613)
            at java.awt.Window.dispatchEventImpl(Window.java:1606)
            at java.awt.Component.dispatchEvent(Component.java:3477)
            at java.awt.EventQueue.dispatchEvent(EventQueue.java:480)
            at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
    read.java:201)
            at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
    ad.java:151)
            at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)        at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)E:\javalesson>