003 API 참조 타입

description :

 

API 참조 타입을 선언하고 사용해 보자

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source code : exam003.java

package exam003;
import java.util.Calendar;
import java.util.Date;

public class exam003 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		
		int[]m = {1, 2, 3};
		int[]n = new int[] {1, 2, 3};
		String card = "H8";
		Calendar calendar = Calendar.getInstance();
		Date date = calendar.getTime();
		long dateMillis = calendar.getTimeInMillis();
		
		System.out.println("referance arrary tyep(m)  : " + (m) + "\n" + "referance arrary type(n) : " + n );
		
		System.out.println(card); // card.toString();
		System.out.println(date); // date.toString();
		System.out.println(calendar); // calendar.toString();
		System.out.println(dateMillis); // dateMillis.toString();
		
	}

}

 

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result :