The equals() method of StringUtils class is a null-safe version of the equals() method of String class , which also handles null values.
Read moreIs equalsIgnoreCase null safe?
equalsIgnoreCase(null); will definitely result in a NullPointerException . So equals methods are not designed to test whether an object is null, just because you can’t invoke them on null .
Read moreCan you do object equals null?
It’s entirely possible for two distinct object instances to be “equal” according to their contract. And then there’s the minor detail that since equals is a method, if you try to invoke it on a null reference, you’ll get a NullPointerException .
Read moreHow do you check if a variable is null or not in Java?
Use “==” to check a variable’s value . If you set a variable to null with “=” then checking that the variable is equal to null would return true. variableName == null; You can also use “!= ” to check that a value is NOT equal.
Read moreHow do you check if an object is null in Python?
There’s no null in Python; instead there’s None . As stated already, the most accurate way to test that something has been given None as a value is to use the is identity operator , which tests that two variables refer to the same object.
Read moreIs an object null?
No , null is not an object .It is a reference type and its value does not refer to any object and so there is no representation of null in memory.
Read moreHow do you check for null?
How to Test for NULL Values?
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