জাভা ৯-এ ইন্টারফেসে প্রাইভেট মেথড ব্যবহার করা যায় কি?

হ্যাঁ, জাভা ৯以降 ইন্টারফেসে প্রাইভেট মেথড ব্যবহার করা যায়।

উদাহরণ

interface MyInterface { 
    public abstract void demo(); 
    public default void defaultMethod() { 
        privateMethod(); 
        staticPrivateMethod(); 
        System.out.println("This is a default method of the interface"); 
    } 
    public static void staticMethod() { 
        staticPrivateMethod(); 
        System.out.println("This is a static method of the interface"); 
    } 
    private void privateMethod(){ 
        System.out.println("This is a private method of the interface"); 
    } 
    private static void staticPrivateMethod(){ 
        System.out.println("This is a static private method of the interface"); 
    } 
} 
public class InterfaceMethodsExample implements MyInterface { 
    public void demo() { 
        System.out.println("Implementation of the demo method"); 
    } 
    public static void main(String[] args){ 
        InterfaceMethodsExample obj = new InterfaceMethodsExample(); 
        obj.defaultMethod(); 
        obj.demo(); 
        MyInterface.staticMethod(); 
    } 
}

আউটপুট

This is a private method of the interface 
This is a static private method of the interface 
This is a default method of the interface 
Implementation of the demo method 
This is a static private method of the interface 
This is a static method of the interface