java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.content.SharedPreferences.getBoolean(java.lang.String, boolean)' on a null object reference at com.example.notebook.dptextiles.fragments.Userloginsession.isuserLoggedIn(Userloginsession.java:45

Stack Overflow | lucky | 4 months ago
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    java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.content.SharedPreferences.getBoolean(java.lang.String, boolean)' on a null object reference at com.example.notebook.dptextiles.fragments.Userloginsession.isuserLoggedIn(Userloginsession.java:45
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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke interface method 'boolean android.content.SharedPreferences.getBoolean(java.lang.String, boolean)' on a null object reference at com.example.notebook.dptextiles.fragments.Userloginsession.isuserLoggedIn(Userloginsession.java:45

    at android.os.Handler.handleCallback()
  2. Android Platform
    ActivityThread.main
    1. android.os.Handler.handleCallback(Handler.java:739)
    2. android.os.Handler.dispatchMessage(Handler.java:95)
    3. android.os.Looper.loop(Looper.java:148)
    4. android.app.ActivityThread.main(ActivityThread.java:5441)
    4 frames
  3. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    1 frame
  4. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)
    2 frames