How many static methods can an interface have?
package com.journaldev.java8.staticmethod;
public interface MyData {
	default void print(String str) {
		if (!isNull(str))
			System.out.println("MyData Print::" + str);
	}
	static boolean isNull(String str) {
		System.out.println("Interface Null Check");
		return str == null ? true : "".equals(str) ? true : false;
	}
}
