java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference

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    Stack Overflow | 2 months ago | Kyle Harley Nilo
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
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    Stack Overflow | 1 year ago | brettbrdls
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setVisibility(int)' on a null object reference
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    Unhandled Exception

    GitHub | 8 months ago | MisterY
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.Integer.equals(java.lang.Object)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference

      at com.example.a1412.alzhaid.Home$5.run()
    2. com.example.a1412
      Home$5.run
      1. com.example.a1412.alzhaid.Home$5.run(Home.java:252)
      1 frame
    3. Android Platform
      ActivityThread.main
      1. android.os.Handler.handleCallback(Handler.java:751)
      2. android.os.Handler.dispatchMessage(Handler.java:95)
      3. android.os.Looper.loop(Looper.java:154)
      4. android.app.ActivityThread.main(ActivityThread.java:6077)
      4 frames
    4. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    5. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
      2 frames