There are seven types of classes in Java: Static Class. Final Class. Abstract Class.
Read moreHow many classes are in Java 15?
There are nine predefined Class objects to represent the eight primitive types and void. These are created by the Java Virtual Machine, and have the same names as the primitive types that they represent, namely boolean , byte , char , short , int , long , float , and double .
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Package java. lang ClassDescriptionCompilerThe Compiler class is provided to support Java-to-native-code compilers and related services.DoubleThe Double class wraps a value of the primitive type double in an object.Enum<E extends Enum<E>>This is the common base class of all Java language enumeration types.Package java.lang – Oracle Help Center docs.oracle.com › javase › docs › api › java › lang › package-summary
Read moreHow many classes are in the Java class library?
There are over 4200 classes in the Java 8 class library, with 100s of new ones compared to prior versions of Java.
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