Can We Create Object Of Static Class In Java Code Example

Snippet 1

  // Java program to demonstrate how to 
// implement static and non-static 
// classes in a Java program. 
class OuterClass { 
    private static String msg = "GeeksForGeeks"; 
  
    // Static nested class 
    public static class NestedStaticClass { 
  
        // Only static members of Outer class 
        // is directly accessible in nested 
        // static class 
        public void printMessage() 
        { 
  
            // Try making 'message' a non-static 
            // variable, there will be compiler error 
            System.out.println( 
                "Message from nested static class: "
                + msg); 
        } 
    } 
  
    // Non-static nested class - 
    // also called Inner class 
    public class InnerClass { 
  
        // Both static and non-static members 
        // of Outer class are accessible in 
        // this Inner class 
        public void display() 
        { 
            System.out.println( 
                "Message from non-static nested class: "
                + msg); 
        } 
    } 
} 
class Main { 
    // How to create instance of static 
    // and non static nested class? 
    public static void main(String args[]) 
    { 
  
        // Create instance of nested Static class 
        OuterClass.NestedStaticClass printer 
            = new OuterClass.NestedStaticClass(); 
  
        // Call non static method of nested 
        // static class 
        printer.printMessage(); 
  
        // In order to create instance of 
        // Inner class we need an Outer class 
        // instance. Let us create Outer class 
        // instance for creating 
        // non-static nested class 
        OuterClass outer = new OuterClass(); 
        OuterClass.InnerClass inner 
            = outer.new InnerClass(); 
  
        // Calling non-static method of Inner class 
        inner.display(); 
  
        // We can also combine above steps in one 
        // step to create instance of Inner class 
        OuterClass.InnerClass innerObject 
            = new OuterClass().new InnerClass(); 
  
        // Similarly we can now call Inner class method 
        innerObject.display(); 
    } 
}