Error: 'Boolean java.lang.String.equals(java.lang.Object)'

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This is a program, which, behind the calculator, stores files that you think are important. The error message field I believe is not his and the Super SU or Android system, because every time, in any program that has to have a deeper access it opens the same field style saying that granted permission. But this time an error occurred. Could anyone help me to solve this problem?

screenshot no celular

java android
  • 4

    but is developing this application? Or is it a mistake of any application that already exists?

  • 1

    Put your code guy, this way your question will receive downvotes and will be closed. Another thing you are comparing a Boolean with an Object?

  • 1

    @Wellingtonavelino in this case Boolean is the return type of the equals method.

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    @Wellingtonavelino the boolean is the function equals

  • I didn’t get it right then, I thought it was something else not his return. hahaha

  • 1

    Your problem is called java.lang.NullPointerException. See more here: http://answall.com/a/63736/132

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The error informed by you indicates that somewhere in your code you are doing str1.equals(str2); whereas str1 is a null object, i.e., you are referencing a null object.

check in your code the places where you are using the method equals to find where your mistake is.

Example that will give the error:

String str1 = null;
String str2 = "teste";
boolean ret = str1.equals(str2);

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