There are two types of methods in Java: Predefined Method. User-defined Method.
Read moreWhich class can use all the features of an established class?
Explanation: Object class is superclass of every class in Java.
Read moreCan you implement a class in Java?
The implements keyword is used to implement an interface . The interface keyword is used to declare a special type of class that only contains abstract methods. To access the interface methods, the interface must be “implemented” (kinda like inherited) by another class with the implements keyword (instead of extends ).
Read moreWhat is the name of a concrete class that implements statement and is included in the core JDK?
Some examples of concrete classes from the JDK are HashMap, HashSet, ArrayList, and LinkedList .
Read moreCan classes be used as a data type?
A class is a type of a data type . It allows you to declare a variable along with its datatype.
Read moreWhat are the inbuilt class present in Java?
The primitive Java types (boolean, byte, char, short, int, long, float, and double), and the keyword void are also represented as Class objects . It has no public constructor. Class objects are constructed automatically by the Java Virtual Machine(JVM).
Read moreWhat are Java library functions?
The Functional Java library provides the usual set of types for managing data like lists, sets, arrays, and maps . The key thing to realize is that these data types are immutable. Additionally, the library provides convenience functions to convert to and from standard Java Collections classes if needed.
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