profiler.java

来自「高质量Java程序设计 源代码」· Java 代码 · 共 16 行

package net.betterjava.collection.performance;

import java.util.List;
import java.util.LinkedList;

public class Profiler {
	public static void main(String[] args) {
		List temp = new LinkedList();
		long elapse = System.currentTimeMillis();
		for (int i = 0; i < 1000000; i++) {
			temp.add(0, "");
		}
		System.out.println(System.currentTimeMillis() - elapse);
	}
}