java.lang.RuntimeException

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  • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.codyhunsberger.cis_3515_lab_3/com.example.codyhunsberger.cis_3515_lab_3.CanvasActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.hashCode()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494) at android.app.ActivityThread.access$900(ActivityThread.java:157) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5551) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.hashCode()' on a null object reference at com.example.codyhunsberger.cis_3515_lab_3.CanvasActivity.setBgColor(CanvasActivity.java:31) at com.example.codyhunsberger.cis_3515_lab_3.CanvasActivity.onCreate(CanvasActivity.java:25) at android.app.Activity.performCreate(Activity.java:6272) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387)
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