listget.java

来自「高质量Java程序设计 源代码」· Java 代码 · 共 36 行

package net.betterjava.collection.performance.list;

import java.util.List;
import java.util.Collection;
import java.util.Collections;

public class ListGet extends AbstractListTest {

	public ListGet() {
		super();
		int[][] i = { { 1, 1000, 1000, 1000, 1000 }, {
				1, 1000, 1000, 1000, 2000 }, {
				1, 1000, 1000, 1000, 3000 }, {
				1, 1000, 1000, 1000, 4000 }, {
				1, 1000, 1000, 1000, 5000 }
		};
		this.setLoopTable(i);
	}

	protected long runTestBody(int rpts, List innerList) {
		Collection c = Collections.nCopies(rpts, "");
		innerList.addAll(c);
		long elapse = System.currentTimeMillis();
		for (int j = 0; j < rpts; j++) {
			innerList.get(j);
		}
		return System.currentTimeMillis() - elapse;
	}

	public static void main(String[] args) {
		AbstractListTest test = new ListGet();
		test.run();
	}

}