4 Replies Latest reply: Dec 8, 2012 1:24 AM by EJP RSS

    How to call a class from a method?

    978658
      Please explain it completely ok?
        • 1. Re: How to call a class from a method?
          EJP
          How to call a class from a method?
          There is no such operation as 'call a class'. You can only call methods.
          Please explain it completely
          There is nothing here to explain.
          ok?
          No, it's not OK, it's just a meaningless question.
          • 2. Re: How to call a class from a method?
            978658
            Why did my program show part of the output I wanted it to show but some time it could perfectly give me the output that I wanted it to show?
            Why do I get blank screen after I call my frame_baru class?
            Why do I get these error messages?

            Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
                 at prgtesisserver.frame_baru.<init>(ProgramTesisBaru.java:769)
                 at prgtesisserver.ProgramTesisBaru$1.lanjut(ProgramTesisBaru.java:101)
                 at prgtesisserver.ProgramTesisBaru$1.actionPerformed(ProgramTesisBaru.java:98)
                 at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
                 at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
                 at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
                 at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
                 at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
                 at java.awt.Component.processMouseEvent(Component.java:6504)
                 at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
                 at java.awt.Component.processEvent(Component.java:6269)
                 at java.awt.Container.processEvent(Container.java:2229)
                 at java.awt.Component.dispatchEventImpl(Component.java:4860)
                 at java.awt.Container.dispatchEventImpl(Container.java:2287)
                 at java.awt.Component.dispatchEvent(Component.java:4686)
                 at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
                 at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
                 at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
                 at java.awt.Container.dispatchEventImpl(Container.java:2273)
                 at java.awt.Window.dispatchEventImpl(Window.java:2713)
                 at java.awt.Component.dispatchEvent(Component.java:4686)
                 at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
                 at java.awt.EventQueue.access$000(EventQueue.java:101)
                 at java.awt.EventQueue$3.run(EventQueue.java:666)
                 at java.awt.EventQueue$3.run(EventQueue.java:664)
                 at java.security.AccessController.doPrivileged(Native Method)
                 at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
                 at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
                 at java.awt.EventQueue$4.run(EventQueue.java:680)
                 at java.awt.EventQueue$4.run(EventQueue.java:678)
                 at java.security.AccessController.doPrivileged(Native Method)
                 at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
                 at java.awt.EventQueue.dispatchEvent(EventQueue.java:677)
                 at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
                 at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
                 at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
                 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
                 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
                 at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

            Edited by: 975655 on Dec 7, 2012 6:14 PM
            • 3. Re: How to call a class from a method?
              rp0428
              >
              Why did my program show part of the output I wanted it to show but some time it could perfectly give me the output that I wanted it to show?
              >
              What does the third button from the right on my digital camera do?

              Please explain it completely ok?

              Once I have your answer I will be able to think clearly and try to help with your question.

              Oops! I mispoke. I would actually need to be able to SEE your code in order to know what it is doing.

              Sorry, no code no help possible.
              • 4. Re: How to call a class from a method?
                EJP
                Moderator action: locking your pointless thread.