java_ StringBuffer_221130(8일차)

package 자바API;

public class Sample05 {

	public static void main(String[] args) {
		
		long start = System.currentTimeMillis(); //현재 지금 시간을 알려준다 1/1000
		
		StringBuffer sb = new StringBuffer()
;		
		String str = "";
		
		for(int i=0; i<100000; i++) {
//			str += i;
			sb.append(i);
		}
		
		long end = System.currentTimeMillis();
		
		System.out.println((end - start));

	}

}