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  1. ,

    You try to parse a String that contains non-numeric characters to an int. The string must contain decimal characters only, optionally beginning with a + or - sign.

  2. ,

    Can occur when you try to convert a String to a numeric value but the String is not well formatted for the conversion.

Solutions on the web

via Stack Overflow by Soham Bhowmick
, 1 year ago
Unable to start activity ComponentInfo{newapp.com.bipl.mynewapp3/newapp.com.bipl.mynewapp3.Page2}: java.lang.NumberFormatException: Invalid int: ""
via Stack Overflow by Antony Prudyus
, 1 year ago
Unable to start activity ComponentInfo{com.example.matrixtest/com.example.matrixtest.MainActivity}: java.lang.NumberFormatException: Invalid int: ""
via Stack Overflow by Asif Sabir
, 1 year ago
Unable to start activity ComponentInfo{com.example.asifsabir.counterapps/com.example.asifsabir.counterapps.MainActivity}: java.lang.NumberFormatException: Invalid int: ""
via Stack Overflow by akhil
, 1 month ago
Unable to start activity ComponentInfo{com.example.akhilbatchu.stopwatch/com.example.akhilbatchu.stopwatch.MainActivity}: java.lang.NumberFormatException: Invalid int: ""
via Stack Overflow by Asm
, 2 years ago
Unable to start activity ComponentInfo{com.elie.billsplitter/com.elie.billsplitter.MainActivity}: java.lang.NumberFormatException: Invalid int: ""
via GitHub by jsarabia1247
, 1 year ago
Unable to start activity ComponentInfo{wycliffeassociates.recordingapp/wycliffeassociates.recordingapp.SplashScreen}: java.lang.NumberFormatException: Invalid int: "null"
java.lang.NumberFormatException: Invalid int: ""	at java.lang.Integer.invalidInt(Integer.java:138)	at java.lang.Integer.parseInt(Integer.java:358)	at java.lang.Integer.parseInt(Integer.java:334)	at newapp.com.bipl.mynewapp3.Page2.onCreate(Page2.java:41)	at android.app.Activity.performCreate(Activity.java:6092)	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112)	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2468)	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2595)	at android.app.ActivityThread.access$800(ActivityThread.java:178)	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470)	at android.os.Handler.dispatchMessage(Handler.java:111)	at android.os.Looper.loop(Looper.java:194)	at android.app.ActivityThread.main(ActivityThread.java:5631)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)