Thus, showInfo() method has been overridden. Car Subclass maintained the same method signature of the Vehicle Superclass. In the above example, we have a Vehicle-Superclass and a Car-Subclass. Superclass reference pointing subclass objectĬar car = new Car() //subclass reference subclass object Vehicle veh = new Vehicle() //Superclass reference - superclass object MethodOverridingExample.java class Vehicle So, you can maintain the Same method signature for both the methods in the Superclass and Subclass with minor changes to the return type for a successful Method Override.
Even the Subclass method can omit to throw any exception at all in the process of Overriding a Superclass method. Exceptions thrown by the Overridden method of the Subclass should be either same or subtype.For example, use protected and public modifiers for methods of Superclass and Subclass respectively. Access modifier used by the Overridden method of the Subclass should be Less restrictive or same.The Return-type of Overriding method in the Subclass can be a Subclass-type of return-type of superclass's method. For example, List and ArrayList are return types of Superclass method and Subclass method respectively.For example, use int and int return-types in both the methods. The Return-type of Overriding method in the Subclass can be the same as the return-type of superclass's method.The Parameter list of the Overriding-Method in the Superclass and Subclass should be the same.Overriding-Method Name in the Superclass and Subclass should be the same.Rules to successfully Override a Java Method are given below.
Java Method Signature is the combination of three things namely Return-Type, Method-Name and Parameter-List. Method Overloading allows reusing the same method name for a different combination of parameters whereas Method Overriding forces the Java Runtime to choose the method in the Subclass to the method of Superclass.Java Method Overloading works in the Same Class whereas Method Overriding requires at least two classes (Superclass and Subclass).
The differences between Java Method Overriding and Method Overloading are given below. Java Method Overriding Rules and Examples Let us know more about Java Method Overriding and its Rules in this Last Minute Java Tutorial with examples. Java Method Overriding is nothing but writing a method in a Subclass with the same method signature of the Superclass so that the Java Runtime invokes the method in the subclass. These results suggest that regional variations in brain CB 1R expression may differentially condition the behavioral effects of cannabinoids with respect to anxiety-related responses.Java Inheritance allows inheriting the methods and properties of a Superclass into a Subclass. Notably, CB 1R levels in the prefrontal cortex were negatively correlated with anxiolysis-related indices in the EPM furthermore, midbrain CB 1R expression was positively correlated with the total duration of social interaction. Immunoblotting analyses on brain samples of C57BL/6 mice revealed that AM251 pre-treatment caused a significant up-regulation of CB 1R expression in the prefrontal cortex and striatum, but also a down-regulation of these receptors in the hippocampus and midbrain. The divergent effects of CP55,940 in AM251- and VEH1-pretreated animals were confirmed in 129SvEv mice. In this last group, CP55,940 also reduced rearing and social interaction in comparison to its vehicle (VEH2). While CP55,940 induced anxiolytic-like effects in the EPM in VEH1-exposed animals, it elicited opposite actions in AM251-exposed mice.
#Veh2 samples plus#
Anxiety-like responses were studied in the novel open field, elevated plus maze (EPM) and social interaction assays. To test this possibility, we assessed the behavioral impact of a potent cannabinoid agonist (CP55,940 0.05–0.1 mg/kg, IP) on C57BL/6 male mice, respectively subjected to a prolonged pre-treatment of either the selective CB 1R antagonist/inverse agonist AM251 (1 mg/kg/day IP, for 21 days, followed by a 3-day clearance period before testing) or its vehicle (VEH1). We hypothesized that the up-regulation of CB 1 receptors (CB 1Rs) in select brain regions may enhance the vulnerability to cannabinoid-induced anxiety. In susceptible users, however, consumption of this drug is conducive to panic, paranoia and dysphoria. Compelling evidence has documented the anxiolytic and mood-enhancing properties of cannabis.