Static class java

// Java program to Demonstrate How to
// Implement Static and Non-static Classes
 
// Class 1
// Helepr class
class OuterClass {
 
    // Input string
    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()
        {
 
            // Print statement whenever this method is
            // called
            System.out.println(
                "Message from non-static nested class: "
                + msg);
        }
    }
}
 
// Class 2
// Main class
class GFG {
 
    // Main driver method
    public static void main(String args[])
    {
 
        // Creating instance of nested Static class
        // inside main() method
        OuterClass.NestedStaticClass printer
            = new OuterClass.NestedStaticClass();
 
        // Calling non-static method of nested
        // static class
        printer.printMessage();
 
        // Note: In order to create instance of Inner class
        //  we need an Outer class instance
 
        // Creating 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 calling inner class defined method
        innerObject.display();
    }
}

Source: geeksforgeeks.org

Static class java

Java has static nested classes but Java has no way of making
a top-level class static.

-1

Similar codes

-1 vote135 views1 answer
How to do press enter to continue in java
Java
0 vote143 views1 answer
Design a class ‘complex ‘with data members for real and imaginary part. provide default and parameterized constructors. write a program to perform arithmetic operations of two complex numbers.
Java
0 vote141 views1 answer
Initialize empty dictionary java
Java
0 vote130 views1 answer
Java pair class
Java
0 vote129 views1 answer
Javax dependency android
Java
0 vote134 views2 answers
Finding the ASCII value of a Character in java
Java
5 votes143 views3 answers
Java remove space at the end of string
Java
9 votes125 views3 answers
Read file in java
Java
0 vote129 views1 answer
Thread java timer
Java
3 votes159 views5 answers
Java sha-256 encryption decryption example
Java