When a class in Java doesn’t override hashCode(), printing an instance of this class gives a nice unique number. The Javadoc of Object says about hashCode(): As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects .
Read moreCan we type cast object in Java?
java object typecasting one object reference can be type cast into another object reference. The cast can be to its own class type or to one of its subclass or superclass types or interfaces. There are compile-time rules and runtime rules for casting in java.
Read moreWhat is need of object type casting?
Downcasting is necessary to gain access to members specific to subclass . Downcasting is done using cast operator. To downcast an object safely, we need instanceof operator. If the real object doesn’t match the type we downcast to, then ClassCastException will be thrown at runtime.18 May 2021
Read moreDoes Java support type casting?
Converting one primitive datatype into another is known as type casting (type conversion) in Java . You can cast the primitive datatypes in two ways namely, Widening and, Narrowing.
Read moreWhat is getClass () in Java?
getClass() method returns the runtime class of an object . That Class object is the object that is locked by static synchronized methods of the represented class.
Read moreWhat is type of object in Java?
The Object class is the parent class of all the classes in java by default . In other words, it is the topmost class of java. The Object class is beneficial if you want to refer any object whose type you don’t know.
Read moreHow can we get name and type of an object in Java?
The getName() method is used to get the names of the entities such as interface, class, array class, void etc. that are represented by the class objects.
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