how many static methods can an interface have 3f

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showing results for - "how many static methods can an interface have 3f"
Marta
07 Aug 2018
1
2package com.journaldev.java8.staticmethod;
3
4public interface MyData {
5
6	default void print(String str) {
7		if (!isNull(str))
8			System.out.println("MyData Print::" + str);
9	}
10
11	static boolean isNull(String str) {
12		System.out.println("Interface Null Check");
13
14		return str == null ? true : "".equals(str) ? true : false;
15	}
16}
17
Francisco
22 Mar 2020
1
2package com.journaldev.java8.staticmethod;
3
4public class MyDataImpl implements MyData {
5
6	public boolean isNull(String str) {
7		System.out.println("Impl Null Check");
8
9		return str == null ? true : false;
10	}
11	
12	public static void main(String args[]){
13		MyDataImpl obj = new MyDataImpl();
14		obj.print("");
15		obj.isNull("abc");
16	}
17}
18
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