How to instantiate static inner class using reflection in Java?

A static inner class can be instantiated without requiring an instance of the outer class. Generally speaking, inner classes are part of nested classes and are called non-static nested classes in Java. The types of inner classes include member inner classes, anonymous inner classes and local inner classes.

We can use reflection to instantiate a static inner class, using InnerClass.class.newInstance(). If we need an instance of the outer class to instantiate a non-static inner class, we can specify it before the new operator.

Example

import java.lang.reflect.*;
public class InnerclassWithReflectionTest {
   public static void main(String args[]) {
      try {
         InnerClass inner = <strong>(InnerClass) InnerClass.class.newInstance()</strong>;
         inner.test();
      } catch(Exception e) {
         e.printStackTrace();
      }
   }
<strong>   // inner class</strong>
   static class InnerClass {
      public void test() {
         System.out.println("Welcome to TutorialsPoint !!!");
      }
   }
}

Output

Welcome to TutorialsPoint !!!

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