The top-level class in Java is the Object class, which contains common methods (such as equals(), hashCode() and toString()) and properties for all Java classes, providing basic functionality for all Java classes.
The top-level class in Java
The top-level class in Java isObject
kind.
Detailed explanation
Object
class is the parent class of all Java classes, which means that all Java classes directly or indirectly inherit Object
class. Therefore, the Object
class is the root or highest level of the Java class hierarchy.
Object
class defines common methods and properties shared by all Java objects, including:
equals()
: Compare two Whether the objects are equal. hashCode()
: Returns the hash code of the object. toString()
: Returns the string representation of the object. In addition, the Object
class also provides basic functions such as cloning, synchronization and exception handling. Since all Java classes inherit the Object
class, they all have access to these features.
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