JAVA问题总结之14-程序运行时间的测量

package java2;

public class test6 {
public static void main(String[] args){
long start=System.currentTimeMillis();
for (int i=1;i<=100000;i++){
System.out.println(i);
}
long time=System.currentTimeMillis()-start;
double stime=(double) time / 1000;
System.out.println("time is "+stime+"s");

}
}

......//省略n个
99998
99999
100000
time is 2.583s