Properties isEmpty() method in Java with Examples The isEmpty() method of Properties class is used to check if this Properties object is empty or not. Returns: This method returns a boolean value stating if this Properties object is empty or not.
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Using … != null still is the way to do it in Java 8 and even Java 11. Otherwise, it’s like using a smartphone to hammer a nail into the wall, “to show the 2018 way of doing it”.
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7. == and != The comparison and not equal to operators are allowed with null in Java . This can made useful in checking of null with objects in java.
Read moreCan an object be null in Java?
According to the Java spec, null is a type that can be assigned to an object variable (as a value as noted in the comment). You cannot instantiate or create variables of this type though, you must use the literal null provided by the compiler.
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