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Is java.lang.Object superclass of all the custom class/objects inherited implicitly? I thought java didn't support multiple inheritance. The reason I ask is if I already inherit from another class in my custom class and again java is forcing implicit inheritance of java.lang.Object on top of it, is it not multiple inheritance?
Also, is java.lang.class Class also the superclass for all custom classes/Objects? If not, how in java reflections we can get the type of class for any class passed or call isInstance on any object?
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Inheritance in Java is a concept that acquires the properties from one class to other classes; for example, the relationship between father and son. Inheritance in Java is a process of acquiring all the behaviours of a parent object.
Object: Java's superclass Stored in the java. lang package, Object declares the following methods, which all other classes inherit: protected Object clone() boolean equals(Object obj)
In Java, the superclass, also known as the parent class , is the class from which a child class (or a subclass) inherits its constructors, methods, and attributes.
In Java, as in other object-oriented programming languages, classes can be derived from other classes. The derived class (the class that is derived from another class) is called a subclass. The class from which its derived is called the superclass. In fact, in Java, all classes must be derived from some class.
Every class without an explicit superclass inherits from java.lang.Object and every other class inherits from it indirectly because when you go up the inheritance tree, you will finally end at a class without an explicit superclass and then at Object.
java.lang.Class is the superclass of all class objects (not of all objects!), for example of String.class.
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