Class getEnclosingClass() method in Java with Examples
The getEnclosingClass() method of java.lang.Class class is used to get the enclosing class of this class. The method returns the enclosing class of this class, if this class is a local class or anonymous class declared in that class. Else this method returns null.
Syntax:
public Class getEnclosingClass() throws SecurityException
Parameter: This method does not accept any parameter.
Return Value: This method returns the enclosing class of this class if this class is a local class or anonymous class declared in that class. Else this method returns null.
Exception This method throws SecurityException if a security manager is present and the security conditions are not met.
Below programs demonstrate the getEnclosingClass() method.
Example 1:
Java
// Java program to demonstrate getEnclosingClass() method import java.util.*; public class Test { public static void main(String[] args) throws ClassNotFoundException { // returns the Class object for this class Class myClass = Class.forName("Test"); System.out.println("Class represented by myClass: " + myClass.toString()); // Get the enclosing class of myClass // using getEnclosingClass() method System.out.println("EnclosingClass of myClass: " + myClass.getEnclosingClass()); } } |
Class represented by myClass: class Test EnclosingClass of myClass: null
Example 2:
Java
// Java program to demonstrate getEnclosingClass() method import java.util.*; class Main { public Object obj; Main() { class Arr { }; obj = new Arr(); } public static void main(String[] args) throws ClassNotFoundException { Main t = new Main(); // returns the Class object Class myClass = t.obj.getClass(); // Get the enclosing class of myClass // using getEnclosingClass() method System.out.println("EnclosingClass of myClass: " + myClass.getEnclosingClass()); } } |
EnclosingClass of myClass: class Main
Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getEnclosingClass–
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