A Java object is a member (also called an instance) of a Java class . Each object has an identity, a behavior and a state. The state of an object is stored in fields (variables), while methods (functions) display the object’s behavior. Objects are created at runtime from templates, which are also known as classes.
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Overview. The method isNull is a static method of the Objects class in java that checks whether the input object reference supplied to it is null or not . If the passed object is null , then the method returns true . If the passed object is non-null , then the method returns false .
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