arithopt.java

来自「纯java操作系统jnode,安装简单和操作简单的个人使用的Java操作系统」· Java 代码 · 共 41 行

/*
 * $Id: ArithOpt.java,v 1.2 2003/12/21 09:07:27 epr Exp $
 */
package org.jnode.test;

/**
 * @author epr
 */
public class ArithOpt {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		long startTime, elapsedTime;
		startTime = System.currentTimeMillis();
		int a, b, c, d, e, f, g, h, i, j, k;
		i = 0;
		for (int z = 0; z < 500000; z++) {
			a = 17;
			b = 67;
			c = 53;
			d = 43;
			e = a + b;
			e = e + e;
			d = d + c;
			f = 5 * a;
			g = 6 * a;
			f = b + 2;
			h = f + g;
			i = g + f * h - 2 * f;
			j = 3 * h;
			k = j / 2;
			i = j * k - e - d + f * c;
		}
		elapsedTime = System.currentTimeMillis();

		System.out.println("Result : " + i + " took " + (elapsedTime - startTime) + "ms");
	}
}