내부 클래스와 람다식1

package ciao_churu.generic;

import java.util.concurrent.Callable;

interface Testable {
	void run();

}

@SuppressWarnings("rawtypes")
class A implements Callable
{

	@Override
	public Object call() throws Exception {
		System.out.println("CallableStart");
		return null;
	}
}


public class example {
	public static void test(Runnable test1) {
		test1.run();
	}

	public static <T> T test2(Callable<T> test2) {
		try
		{
			return test2.call();
		} catch (Exception ex) {
			return null;
		}
	}

	@SuppressWarnings("unchecked")
	public static void main(String args[]) {
		
		//1번
		test(()->{
			System.out.println("run implments");
		});
		
		//2번 
		@SuppressWarnings("rawtypes")
		Callable test2Runnable = new A()// A클래스는 Ruunable을 implements한 클래스
		{
			//익명 클래스 부분 
			@Override
			public Object call() 
			{
				System.out.println("run implments[Not] lamdaType");
				return null;
			}
		};
		test2(test2Runnable);
	}
}

참고자료 : https://nowonbun.tistory.com/499?category=636956