[疯狂的想法] 虐待你的CPU,打开任务管理器,看看你的CPU吧

CPU.java

package fun;import java.util.*;public class CPU{/** * Valiables * */private double GHz=1.83;private static final double MARKGHZ=1.83;private double rate=1;/** * Methods * *//** * CPU(double GHz) * */CPU(double GHz) {this.GHz=GHz;rate=this.GHz/MARKGHZ;}CPU(){}/** * 计时器 * runForSeconds(double seconds) * */public void runForSeconds(double seconds){double now=new Date().getTime();double end=new Date().getTime();while((end-now)<seconds*1000){run();end=new Date().getTime();}}/** * 让CPU使用率提高50% * */public void run(){ }/** * 50 * */public static void fifty(){int len=1000;//与该值无关int[] a=new int[len];for(int i=0;i<len;i++){a[i]=new Random().nextInt(len);//此处无效}}/** * 80 * */public static void eighty(){System.out.println(new Date());}}

rock it

package fun;import java.io.*;public class CpuHack {/** * Valiables * *//** * Methods * *//** * main */public static void main(String[] args) {//CPU cpu=new CPU(1.86);//cpu.runForSeconds(0);Fifty f=new Fifty();Eighty e=new Eighty(); f.runForSeconds(7);e.runForSeconds(6); f.runForSeconds(9);}}class Fifty extends CPU{public void run() { CPU.fifty();}}class Eighty extends CPU{public void run() { CPU.eighty();}}