query: How to solve " java.lang.NullPointerException: ' on Equals function in Java?
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 103930
negative_passages.text: How to ensure hashCode() is consistent with equals()?
negative_passages.docid: 70078
negative_passages.text: Java two equal signs in one statement?
negative_passages.docid: 79586
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object
negative_passages.docid: 153856
negative_passages.text: String comparison and String interning in Java
negative_passages.docid: 113187
negative_passages.text: Comparing Java enum members: == or equals()?
negative_passages.docid: 878
negative_passages.text: What issues should be considered when overriding equals and hashCode in Java?
negative_passages.docid: 128865
negative_passages.text: The equals() method in Java works unexpectedly on Long data type
negative_passages.docid: 10818
negative_passages.text: NullPointerException : println needs a message in android
negative_passages.docid: 5608
negative_passages.text: Overriding the java equals() method - not working?
negative_passages.docid: 78285
negative_passages.text: How to check for equals? (0 == i) or (i == 0)
negative_passages.docid: 104501
negative_passages.text: How do I enforce null checking?
negative_passages.docid: 13711
negative_passages.text: java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType
negative_passages.docid: 123797
negative_passages.text: Not equal  != operator on NULL
negative_passages.docid: 94973
negative_passages.text: Why type "int" is never equal to 'null'?
negative_passages.docid: 98080
negative_passages.text: Android: Cannot invoke toString() on the primitive type int
negative_passages.docid: 39781
negative_passages.text: Why does the is operator return false when given null?