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Copy pathM4MeasureTime.java
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36 lines (30 loc) · 1005 Bytes
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package lambda.ex1;
import lambda.Procedure;
import java.util.Arrays;
public class M4MeasureTime {
public static void main(String[] args) {
Procedure p1 = () -> {
int N = 100;
int sum = 0;
for (int i = 1; i <= N; i++) {
sum += i;
}
System.out.print("[1부터 100까지 합] ");
System.out.println("결과: " + sum);
};
Procedure p2 = () -> {
int[] arr = new int[]{4, 3, 2, 1};
System.out.println("원본 배열: " + Arrays.toString(arr));
Arrays.sort(arr);
System.out.println("배열 정렬: " + Arrays.toString(arr));
};
measure(p1);
measure(p2);
}
private static void measure(Procedure p) {
long start = System.nanoTime();
p.run();
long end = System.nanoTime();
System.out.println("실행 시간 : " + (end-start)+"ns");
}
}